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Finding the Fourth Proportional to 71,773.32, 99,021.78 and 43,092.84

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Solution

The fourth proportional to 71,773.32, 99,021.78 and 43,092.84 is: 59,452.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,773.32 : 99,021.78 = 43,092.84 : x
  2. Step 2: Convert to fraction form
    71,773.32/99,021.78 = 43,092.84/x
  3. Step 3: Cross multiply
    71,773.32x = 99,021.78 × 43,092.84
  4. Step 4: Simplify right side
    71,773.32x = 4,267,129,722.06
  5. Step 5: Solve for x
    x = 4,267,129,722.06/71,773.32
  6. Step 6: Final answer
    x = 59,452.87

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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.