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Finding the Fourth Proportional to 61,728.55, 92,550.70 and 29,690.70

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Solution

The fourth proportional to 61,728.55, 92,550.70 and 29,690.70 is: 44,515.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,728.55 : 92,550.70 = 29,690.70 : x
  2. Step 2: Convert to fraction form
    61,728.55/92,550.70 = 29,690.70/x
  3. Step 3: Cross multiply
    61,728.55x = 92,550.70 × 29,690.70
  4. Step 4: Simplify right side
    61,728.55x = 2,747,895,279.14
  5. Step 5: Solve for x
    x = 2,747,895,279.14/61,728.55
  6. Step 6: Final answer
    x = 44,515.79

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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.