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Finding the Fourth Proportional to 48,345.60, 66,713.60 and 27,123.20

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Solution

The fourth proportional to 48,345.60, 66,713.60 and 27,123.20 is: 37,428.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,345.60 : 66,713.60 = 27,123.20 : x
  2. Step 2: Convert to fraction form
    48,345.60/66,713.60 = 27,123.20/x
  3. Step 3: Cross multiply
    48,345.60x = 66,713.60 × 27,123.20
  4. Step 4: Simplify right side
    48,345.60x = 1,809,486,315.52
  5. Step 5: Solve for x
    x = 1,809,486,315.52/48,345.60
  6. Step 6: Final answer
    x = 37,428.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.