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Finding the Fourth Proportional to 61,633.70, 85,053.11 and 34,775.52

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Solution

The fourth proportional to 61,633.70, 85,053.11 and 34,775.52 is: 47,989.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,633.70 : 85,053.11 = 34,775.52 : x
  2. Step 2: Convert to fraction form
    61,633.70/85,053.11 = 34,775.52/x
  3. Step 3: Cross multiply
    61,633.70x = 85,053.11 × 34,775.52
  4. Step 4: Simplify right side
    61,633.70x = 2,957,766,127.87
  5. Step 5: Solve for x
    x = 2,957,766,127.87/61,633.70
  6. Step 6: Final answer
    x = 47,989.43

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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.