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Finding the Fourth Proportional to 8,805.53, 13,209.11 and 3,184.61

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Solution

The fourth proportional to 8,805.53, 13,209.11 and 3,184.61 is: 4,777.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,805.53 : 13,209.11 = 3,184.61 : x
  2. Step 2: Convert to fraction form
    8,805.53/13,209.11 = 3,184.61/x
  3. Step 3: Cross multiply
    8,805.53x = 13,209.11 × 3,184.61
  4. Step 4: Simplify right side
    8,805.53x = 42,065,781.83
  5. Step 5: Solve for x
    x = 42,065,781.83/8,805.53
  6. Step 6: Final answer
    x = 4,777.20

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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.