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Finding the Fourth Proportional to 25,781.91, 38,672.88 and 7,062.13

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Solution

The fourth proportional to 25,781.91, 38,672.88 and 7,062.13 is: 10,593.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,781.91 : 38,672.88 = 7,062.13 : x
  2. Step 2: Convert to fraction form
    25,781.91/38,672.88 = 7,062.13/x
  3. Step 3: Cross multiply
    25,781.91x = 38,672.88 × 7,062.13
  4. Step 4: Simplify right side
    25,781.91x = 273,112,906.03
  5. Step 5: Solve for x
    x = 273,112,906.03/25,781.91
  6. Step 6: Final answer
    x = 10,593.20

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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.