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Finding the Fourth Proportional to 69,728.52, 96,226.11 and 37,897.43

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Solution

The fourth proportional to 69,728.52, 96,226.11 and 37,897.43 is: 52,298.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,728.52 : 96,226.11 = 37,897.43 : x
  2. Step 2: Convert to fraction form
    69,728.52/96,226.11 = 37,897.43/x
  3. Step 3: Cross multiply
    69,728.52x = 96,226.11 × 37,897.43
  4. Step 4: Simplify right side
    69,728.52x = 3,646,721,786.77
  5. Step 5: Solve for x
    x = 3,646,721,786.77/69,728.52
  6. Step 6: Final answer
    x = 52,298.86

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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.