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Finding the Fourth Proportional to 8,660.48, 12,992 and 2,503.68

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Solution

The fourth proportional to 8,660.48, 12,992 and 2,503.68 is: 3,755.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,660.48 : 12,992 = 2,503.68 : x
  2. Step 2: Convert to fraction form
    8,660.48/12,992 = 2,503.68/x
  3. Step 3: Cross multiply
    8,660.48x = 12,992 × 2,503.68
  4. Step 4: Simplify right side
    8,660.48x = 32,527,810.56
  5. Step 5: Solve for x
    x = 32,527,810.56/8,660.48
  6. Step 6: Final answer
    x = 3,755.89

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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.