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Finding the Fourth Proportional to 63,211.59, 87,234.65 and 36,354.12

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Solution

The fourth proportional to 63,211.59, 87,234.65 and 36,354.12 is: 50,170.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,211.59 : 87,234.65 = 36,354.12 : x
  2. Step 2: Convert to fraction form
    63,211.59/87,234.65 = 36,354.12/x
  3. Step 3: Cross multiply
    63,211.59x = 87,234.65 × 36,354.12
  4. Step 4: Simplify right side
    63,211.59x = 3,171,338,934.26
  5. Step 5: Solve for x
    x = 3,171,338,934.26/63,211.59
  6. Step 6: Final answer
    x = 50,170.21

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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.