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Finding the Fourth Proportional to 3,866.53, 5,335.91 and 2,098.13

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Solution

The fourth proportional to 3,866.53, 5,335.91 and 2,098.13 is: 2,895.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,866.53 : 5,335.91 = 2,098.13 : x
  2. Step 2: Convert to fraction form
    3,866.53/5,335.91 = 2,098.13/x
  3. Step 3: Cross multiply
    3,866.53x = 5,335.91 × 2,098.13
  4. Step 4: Simplify right side
    3,866.53x = 11,195,443.57
  5. Step 5: Solve for x
    x = 11,195,443.57/3,866.53
  6. Step 6: Final answer
    x = 2,895.48

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Why These Related Problems?

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