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Finding the Fourth Proportional to 18,167.09, 27,254.58 and 7,631.10

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Solution

The fourth proportional to 18,167.09, 27,254.58 and 7,631.10 is: 11,448.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,167.09 : 27,254.58 = 7,631.10 : x
  2. Step 2: Convert to fraction form
    18,167.09/27,254.58 = 7,631.10/x
  3. Step 3: Cross multiply
    18,167.09x = 27,254.58 × 7,631.10
  4. Step 4: Simplify right side
    18,167.09x = 207,982,454.05
  5. Step 5: Solve for x
    x = 207,982,454.05/18,167.09
  6. Step 6: Final answer
    x = 11,448.31

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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.