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Finding the Fourth Proportional to 40,513.71, 60,728.87 and 15,547.11

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Solution

The fourth proportional to 40,513.71, 60,728.87 and 15,547.11 is: 23,304.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,513.71 : 60,728.87 = 15,547.11 : x
  2. Step 2: Convert to fraction form
    40,513.71/60,728.87 = 15,547.11/x
  3. Step 3: Cross multiply
    40,513.71x = 60,728.87 × 15,547.11
  4. Step 4: Simplify right side
    40,513.71x = 944,158,344.33
  5. Step 5: Solve for x
    x = 944,158,344.33/40,513.71
  6. Step 6: Final answer
    x = 23,304.66

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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.