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Finding the Fourth Proportional to 63,212.10, 87,231.02 and 34,917.18

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Solution

The fourth proportional to 63,212.10, 87,231.02 and 34,917.18 is: 48,184.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,212.10 : 87,231.02 = 34,917.18 : x
  2. Step 2: Convert to fraction form
    63,212.10/87,231.02 = 34,917.18/x
  3. Step 3: Cross multiply
    63,212.10x = 87,231.02 × 34,917.18
  4. Step 4: Simplify right side
    63,212.10x = 3,045,861,226.92
  5. Step 5: Solve for x
    x = 3,045,861,226.92/63,212.10
  6. Step 6: Final answer
    x = 48,184.78

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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.