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Finding the Fourth Proportional to 8,644.70, 12,965.76 and 2,404.06

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Solution

The fourth proportional to 8,644.70, 12,965.76 and 2,404.06 is: 3,605.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,644.70 : 12,965.76 = 2,404.06 : x
  2. Step 2: Convert to fraction form
    8,644.70/12,965.76 = 2,404.06/x
  3. Step 3: Cross multiply
    8,644.70x = 12,965.76 × 2,404.06
  4. Step 4: Simplify right side
    8,644.70x = 31,170,432.57
  5. Step 5: Solve for x
    x = 31,170,432.57/8,644.70
  6. Step 6: Final answer
    x = 3,605.73

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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.