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Finding the Fourth Proportional to 70,791.45, 97,694.13 and 38,962.29

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Solution

The fourth proportional to 70,791.45, 97,694.13 and 38,962.29 is: 53,769.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,791.45 : 97,694.13 = 38,962.29 : x
  2. Step 2: Convert to fraction form
    70,791.45/97,694.13 = 38,962.29/x
  3. Step 3: Cross multiply
    70,791.45x = 97,694.13 × 38,962.29
  4. Step 4: Simplify right side
    70,791.45x = 3,806,387,024.36
  5. Step 5: Solve for x
    x = 3,806,387,024.36/70,791.45
  6. Step 6: Final answer
    x = 53,769.02

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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.