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Finding the Fourth Proportional to 70,862.66, 97,789.29 and 39,034.52

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Solution

The fourth proportional to 70,862.66, 97,789.29 and 39,034.52 is: 53,866.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,862.66 : 97,789.29 = 39,034.52 : x
  2. Step 2: Convert to fraction form
    70,862.66/97,789.29 = 39,034.52/x
  3. Step 3: Cross multiply
    70,862.66x = 97,789.29 × 39,034.52
  4. Step 4: Simplify right side
    70,862.66x = 3,817,157,507.34
  5. Step 5: Solve for x
    x = 3,817,157,507.34/70,862.66
  6. Step 6: Final answer
    x = 53,866.98

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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.