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Finding the Fourth Proportional to 71,379.98, 107,070.70 and 29,249.24

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Solution

The fourth proportional to 71,379.98, 107,070.70 and 29,249.24 is: 43,874.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,379.98 : 107,070.70 = 29,249.24 : x
  2. Step 2: Convert to fraction form
    71,379.98/107,070.70 = 29,249.24/x
  3. Step 3: Cross multiply
    71,379.98x = 107,070.70 × 29,249.24
  4. Step 4: Simplify right side
    71,379.98x = 3,131,736,601.27
  5. Step 5: Solve for x
    x = 3,131,736,601.27/71,379.98
  6. Step 6: Final answer
    x = 43,874.16

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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.