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Finding the Fourth Proportional to 5,592.80, 8,372.76 and 3,921.11

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Solution

The fourth proportional to 5,592.80, 8,372.76 and 3,921.11 is: 5,870.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,592.80 : 8,372.76 = 3,921.11 : x
  2. Step 2: Convert to fraction form
    5,592.80/8,372.76 = 3,921.11/x
  3. Step 3: Cross multiply
    5,592.80x = 8,372.76 × 3,921.11
  4. Step 4: Simplify right side
    5,592.80x = 32,830,512.96
  5. Step 5: Solve for x
    x = 32,830,512.96/5,592.80
  6. Step 6: Final answer
    x = 5,870.14

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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.