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Finding the Fourth Proportional to 7,716.49, 10,648.80 and 4,359.61

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Solution

The fourth proportional to 7,716.49, 10,648.80 and 4,359.61 is: 6,016.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,716.49 : 10,648.80 = 4,359.61 : x
  2. Step 2: Convert to fraction form
    7,716.49/10,648.80 = 4,359.61/x
  3. Step 3: Cross multiply
    7,716.49x = 10,648.80 × 4,359.61
  4. Step 4: Simplify right side
    7,716.49x = 46,424,614.97
  5. Step 5: Solve for x
    x = 46,424,614.97/7,716.49
  6. Step 6: Final answer
    x = 6,016.29

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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.