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Finding the Fourth Proportional to 5,480.80, 7,562.90 and 3,356.87

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Solution

The fourth proportional to 5,480.80, 7,562.90 and 3,356.87 is: 4,632.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,480.80 : 7,562.90 = 3,356.87 : x
  2. Step 2: Convert to fraction form
    5,480.80/7,562.90 = 3,356.87/x
  3. Step 3: Cross multiply
    5,480.80x = 7,562.90 × 3,356.87
  4. Step 4: Simplify right side
    5,480.80x = 25,387,672.12
  5. Step 5: Solve for x
    x = 25,387,672.12/5,480.80
  6. Step 6: Final answer
    x = 4,632.11

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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.