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Finding the Fourth Proportional to 21,591.59, 32,388.55 and 6,801.67

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Solution

The fourth proportional to 21,591.59, 32,388.55 and 6,801.67 is: 10,202.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,591.59 : 32,388.55 = 6,801.67 : x
  2. Step 2: Convert to fraction form
    21,591.59/32,388.55 = 6,801.67/x
  3. Step 3: Cross multiply
    21,591.59x = 32,388.55 × 6,801.67
  4. Step 4: Simplify right side
    21,591.59x = 220,296,130.90
  5. Step 5: Solve for x
    x = 220,296,130.90/21,591.59
  6. Step 6: Final answer
    x = 10,202.87

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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.