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Finding the Fourth Proportional to 63,257.28, 87,290.72 and 34,960.80

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Solution

The fourth proportional to 63,257.28, 87,290.72 and 34,960.80 is: 48,243.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,257.28 : 87,290.72 = 34,960.80 : x
  2. Step 2: Convert to fraction form
    63,257.28/87,290.72 = 34,960.80/x
  3. Step 3: Cross multiply
    63,257.28x = 87,290.72 × 34,960.80
  4. Step 4: Simplify right side
    63,257.28x = 3,051,753,403.78
  5. Step 5: Solve for x
    x = 3,051,753,403.78/63,257.28
  6. Step 6: Final answer
    x = 48,243.51

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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.