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Finding the Fourth Proportional to 2,487.04, 3,432.04 and 1,367.98

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Solution

The fourth proportional to 2,487.04, 3,432.04 and 1,367.98 is: 1,887.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.04 : 3,432.04 = 1,367.98 : x
  2. Step 2: Convert to fraction form
    2,487.04/3,432.04 = 1,367.98/x
  3. Step 3: Cross multiply
    2,487.04x = 3,432.04 × 1,367.98
  4. Step 4: Simplify right side
    2,487.04x = 4,694,951.75
  5. Step 5: Solve for x
    x = 4,694,951.75/2,487.04
  6. Step 6: Final answer
    x = 1,887.77

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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.