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Finding the Fourth Proportional to 8,991.76, 13,487.62 and 2,417.95

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Solution

The fourth proportional to 8,991.76, 13,487.62 and 2,417.95 is: 3,626.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,991.76 : 13,487.62 = 2,417.95 : x
  2. Step 2: Convert to fraction form
    8,991.76/13,487.62 = 2,417.95/x
  3. Step 3: Cross multiply
    8,991.76x = 13,487.62 × 2,417.95
  4. Step 4: Simplify right side
    8,991.76x = 32,612,390.78
  5. Step 5: Solve for x
    x = 32,612,390.78/8,991.76
  6. Step 6: Final answer
    x = 3,626.92

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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.