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Finding the Fourth Proportional to 3,333.38, 5,000.00 and 868.15

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Solution

The fourth proportional to 3,333.38, 5,000.00 and 868.15 is: 1,302.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,333.38 : 5,000.00 = 868.15 : x
  2. Step 2: Convert to fraction form
    3,333.38/5,000.00 = 868.15/x
  3. Step 3: Cross multiply
    3,333.38x = 5,000.00 × 868.15
  4. Step 4: Simplify right side
    3,333.38x = 4,340,727.17
  5. Step 5: Solve for x
    x = 4,340,727.17/3,333.38
  6. Step 6: Final answer
    x = 1,302.20

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Why These Related Problems?

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