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Finding the Fourth Proportional to 61,677.60, 85,117.14 and 37,799.66

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Solution

The fourth proportional to 61,677.60, 85,117.14 and 37,799.66 is: 52,164.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,677.60 : 85,117.14 = 37,799.66 : x
  2. Step 2: Convert to fraction form
    61,677.60/85,117.14 = 37,799.66/x
  3. Step 3: Cross multiply
    61,677.60x = 85,117.14 × 37,799.66
  4. Step 4: Simplify right side
    61,677.60x = 3,217,398,526.59
  5. Step 5: Solve for x
    x = 3,217,398,526.59/61,677.60
  6. Step 6: Final answer
    x = 52,164.78

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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.