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Finding the Fourth Proportional to 63,531.12, 87,676.92 and 36,678.54

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Solution

The fourth proportional to 63,531.12, 87,676.92 and 36,678.54 is: 50,618.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,531.12 : 87,676.92 = 36,678.54 : x
  2. Step 2: Convert to fraction form
    63,531.12/87,676.92 = 36,678.54/x
  3. Step 3: Cross multiply
    63,531.12x = 87,676.92 × 36,678.54
  4. Step 4: Simplify right side
    63,531.12x = 3,215,861,417.30
  5. Step 5: Solve for x
    x = 3,215,861,417.30/63,531.12
  6. Step 6: Final answer
    x = 50,618.68

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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.