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Finding the Fourth Proportional to 48,512.90, 72,749.90 and 17,331.14

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Solution

The fourth proportional to 48,512.90, 72,749.90 and 17,331.14 is: 25,989.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,512.90 : 72,749.90 = 17,331.14 : x
  2. Step 2: Convert to fraction form
    48,512.90/72,749.90 = 17,331.14/x
  3. Step 3: Cross multiply
    48,512.90x = 72,749.90 × 17,331.14
  4. Step 4: Simplify right side
    48,512.90x = 1,260,838,701.89
  5. Step 5: Solve for x
    x = 1,260,838,701.89/48,512.90
  6. Step 6: Final answer
    x = 25,989.76

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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.