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Finding the Fourth Proportional to 18,441,660.20, 27,662,490.30 and 17,181,948.20

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Solution

The fourth proportional to 18,441,660.20, 27,662,490.30 and 17,181,948.20 is: 25,772,922.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,441,660.20 : 27,662,490.30 = 17,181,948.20 : x
  2. Step 2: Convert to fraction form
    18,441,660.20/27,662,490.30 = 17,181,948.20/x
  3. Step 3: Cross multiply
    18,441,660.20x = 27,662,490.30 × 17,181,948.20
  4. Step 4: Simplify right side
    18,441,660.20x = 475,295,475,417,602.44
  5. Step 5: Solve for x
    x = 475,295,475,417,602.44/18,441,660.20
  6. Step 6: Final answer
    x = 25,772,922.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.