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Finding the Fourth Proportional to 61,691.70, 85,134.58 and 33,397.39

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Solution

The fourth proportional to 61,691.70, 85,134.58 and 33,397.39 is: 46,088.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,691.70 : 85,134.58 = 33,397.39 : x
  2. Step 2: Convert to fraction form
    61,691.70/85,134.58 = 33,397.39/x
  3. Step 3: Cross multiply
    61,691.70x = 85,134.58 × 33,397.39
  4. Step 4: Simplify right side
    61,691.70x = 2,843,272,474.42
  5. Step 5: Solve for x
    x = 2,843,272,474.42/61,691.70
  6. Step 6: Final answer
    x = 46,088.41

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1.5x scale

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.