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Finding the Fourth Proportional to 63,604.89, 87,766.05 and 38,105.55

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Solution

The fourth proportional to 63,604.89, 87,766.05 and 38,105.55 is: 52,580.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,604.89 : 87,766.05 = 38,105.55 : x
  2. Step 2: Convert to fraction form
    63,604.89/87,766.05 = 38,105.55/x
  3. Step 3: Cross multiply
    63,604.89x = 87,766.05 × 38,105.55
  4. Step 4: Simplify right side
    63,604.89x = 3,344,373,606.58
  5. Step 5: Solve for x
    x = 3,344,373,606.58/63,604.89
  6. Step 6: Final answer
    x = 52,580.45

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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.