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Finding the Fourth Proportional to 63,515.80, 87,631.60 and 36,654.76

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Solution

The fourth proportional to 63,515.80, 87,631.60 and 36,654.76 is: 50,571.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,515.80 : 87,631.60 = 36,654.76 : x
  2. Step 2: Convert to fraction form
    63,515.80/87,631.60 = 36,654.76/x
  3. Step 3: Cross multiply
    63,515.80x = 87,631.60 × 36,654.76
  4. Step 4: Simplify right side
    63,515.80x = 3,212,115,266.42
  5. Step 5: Solve for x
    x = 3,212,115,266.42/63,515.80
  6. Step 6: Final answer
    x = 50,571.91

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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.