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Finding the Fourth Proportional to 29,121.99, 43,671.90 and 10,398.54

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Solution

The fourth proportional to 29,121.99, 43,671.90 and 10,398.54 is: 15,593.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,121.99 : 43,671.90 = 10,398.54 : x
  2. Step 2: Convert to fraction form
    29,121.99/43,671.90 = 10,398.54/x
  3. Step 3: Cross multiply
    29,121.99x = 43,671.90 × 10,398.54
  4. Step 4: Simplify right side
    29,121.99x = 454,123,999.03
  5. Step 5: Solve for x
    x = 454,123,999.03/29,121.99
  6. Step 6: Final answer
    x = 15,593.85

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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.