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Finding the Fourth Proportional to 32,512.52, 48,768.78 and 9,138.96

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Solution

The fourth proportional to 32,512.52, 48,768.78 and 9,138.96 is: 13,708.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,512.52 : 48,768.78 = 9,138.96 : x
  2. Step 2: Convert to fraction form
    32,512.52/48,768.78 = 9,138.96/x
  3. Step 3: Cross multiply
    32,512.52x = 48,768.78 × 9,138.96
  4. Step 4: Simplify right side
    32,512.52x = 445,695,693.94
  5. Step 5: Solve for x
    x = 445,695,693.94/32,512.52
  6. Step 6: Final answer
    x = 13,708.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.