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Finding the Fourth Proportional to 67,740.71, 93,463.08 and 39,058.11

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Solution

The fourth proportional to 67,740.71, 93,463.08 and 39,058.11 is: 53,889.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,740.71 : 93,463.08 = 39,058.11 : x
  2. Step 2: Convert to fraction form
    67,740.71/93,463.08 = 39,058.11/x
  3. Step 3: Cross multiply
    67,740.71x = 93,463.08 × 39,058.11
  4. Step 4: Simplify right side
    67,740.71x = 3,650,491,259.58
  5. Step 5: Solve for x
    x = 3,650,491,259.58/67,740.71
  6. Step 6: Final answer
    x = 53,889.18

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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.