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Finding the Fourth Proportional to 40,463.28, 60,694.20 and 15,839.28

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Solution

The fourth proportional to 40,463.28, 60,694.20 and 15,839.28 is: 23,758.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,463.28 : 60,694.20 = 15,839.28 : x
  2. Step 2: Convert to fraction form
    40,463.28/60,694.20 = 15,839.28/x
  3. Step 3: Cross multiply
    40,463.28x = 60,694.20 × 15,839.28
  4. Step 4: Simplify right side
    40,463.28x = 961,352,428.18
  5. Step 5: Solve for x
    x = 961,352,428.18/40,463.28
  6. Step 6: Final answer
    x = 23,758.64

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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.