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Finding the Fourth Proportional to 29,989.48, 41,385.48 and 16,560.76

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Solution

The fourth proportional to 29,989.48, 41,385.48 and 16,560.76 is: 22,853.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,989.48 : 41,385.48 = 16,560.76 : x
  2. Step 2: Convert to fraction form
    29,989.48/41,385.48 = 16,560.76/x
  3. Step 3: Cross multiply
    29,989.48x = 41,385.48 × 16,560.76
  4. Step 4: Simplify right side
    29,989.48x = 685,375,001.76
  5. Step 5: Solve for x
    x = 685,375,001.76/29,989.48
  6. Step 6: Final answer
    x = 22,853.85

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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.