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Finding the Fourth Proportional to 7,744.74, 10,687.61 and 4,387.52

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Solution

The fourth proportional to 7,744.74, 10,687.61 and 4,387.52 is: 6,054.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,744.74 : 10,687.61 = 4,387.52 : x
  2. Step 2: Convert to fraction form
    7,744.74/10,687.61 = 4,387.52/x
  3. Step 3: Cross multiply
    7,744.74x = 10,687.61 × 4,387.52
  4. Step 4: Simplify right side
    7,744.74x = 46,892,140.32
  5. Step 5: Solve for x
    x = 46,892,140.32/7,744.74
  6. Step 6: Final answer
    x = 6,054.71

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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.