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Finding the Fourth Proportional to 63,124.88, 87,034.92 and 51,144.08

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Solution

The fourth proportional to 63,124.88, 87,034.92 and 51,144.08 is: 70,516.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,124.88 : 87,034.92 = 51,144.08 : x
  2. Step 2: Convert to fraction form
    63,124.88/87,034.92 = 51,144.08/x
  3. Step 3: Cross multiply
    63,124.88x = 87,034.92 × 51,144.08
  4. Step 4: Simplify right side
    63,124.88x = 4,451,320,911.27
  5. Step 5: Solve for x
    x = 4,451,320,911.27/63,124.88
  6. Step 6: Final answer
    x = 70,516.11

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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.