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Finding the Fourth Proportional to 7,909.44, 10,914.86 and 4,372.58

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Solution

The fourth proportional to 7,909.44, 10,914.86 and 4,372.58 is: 6,034.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,909.44 : 10,914.86 = 4,372.58 : x
  2. Step 2: Convert to fraction form
    7,909.44/10,914.86 = 4,372.58/x
  3. Step 3: Cross multiply
    7,909.44x = 10,914.86 × 4,372.58
  4. Step 4: Simplify right side
    7,909.44x = 47,726,098.54
  5. Step 5: Solve for x
    x = 47,726,098.54/7,909.44
  6. Step 6: Final answer
    x = 6,034.07

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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.