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Finding the Fourth Proportional to 7,454.18, 11,171.18 and 2,834.66

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Solution

The fourth proportional to 7,454.18, 11,171.18 and 2,834.66 is: 4,248.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,454.18 : 11,171.18 = 2,834.66 : x
  2. Step 2: Convert to fraction form
    7,454.18/11,171.18 = 2,834.66/x
  3. Step 3: Cross multiply
    7,454.18x = 11,171.18 × 2,834.66
  4. Step 4: Simplify right side
    7,454.18x = 31,666,497.10
  5. Step 5: Solve for x
    x = 31,666,497.10/7,454.18
  6. Step 6: Final answer
    x = 4,248.15

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.