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Finding the Fourth Proportional to 8,729.96, 12,041.79 and 5,744.72

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Solution

The fourth proportional to 8,729.96, 12,041.79 and 5,744.72 is: 7,924.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,729.96 : 12,041.79 = 5,744.72 : x
  2. Step 2: Convert to fraction form
    8,729.96/12,041.79 = 5,744.72/x
  3. Step 3: Cross multiply
    8,729.96x = 12,041.79 × 5,744.72
  4. Step 4: Simplify right side
    8,729.96x = 69,176,711.85
  5. Step 5: Solve for x
    x = 69,176,711.85/8,729.96
  6. Step 6: Final answer
    x = 7,924.06

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.