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Finding the Fourth Proportional to 32,652.28, 48,978.40 and 15,112.54

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Solution

The fourth proportional to 32,652.28, 48,978.40 and 15,112.54 is: 22,668.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,652.28 : 48,978.40 = 15,112.54 : x
  2. Step 2: Convert to fraction form
    32,652.28/48,978.40 = 15,112.54/x
  3. Step 3: Cross multiply
    32,652.28x = 48,978.40 × 15,112.54
  4. Step 4: Simplify right side
    32,652.28x = 740,188,029.14
  5. Step 5: Solve for x
    x = 740,188,029.14/32,652.28
  6. Step 6: Final answer
    x = 22,668.80

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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.