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Finding the Fourth Proportional to 32,489.52, 48,734.28 and 7,865.52

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Solution

The fourth proportional to 32,489.52, 48,734.28 and 7,865.52 is: 11,798.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,489.52 : 48,734.28 = 7,865.52 : x
  2. Step 2: Convert to fraction form
    32,489.52/48,734.28 = 7,865.52/x
  3. Step 3: Cross multiply
    32,489.52x = 48,734.28 × 7,865.52
  4. Step 4: Simplify right side
    32,489.52x = 383,320,454.03
  5. Step 5: Solve for x
    x = 383,320,454.03/32,489.52
  6. Step 6: Final answer
    x = 11,798.28

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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.