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Finding the Fourth Proportional to 5,061.68, 7,591 and 2,720.24

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Solution

The fourth proportional to 5,061.68, 7,591 and 2,720.24 is: 4,079.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,061.68 : 7,591 = 2,720.24 : x
  2. Step 2: Convert to fraction form
    5,061.68/7,591 = 2,720.24/x
  3. Step 3: Cross multiply
    5,061.68x = 7,591 × 2,720.24
  4. Step 4: Simplify right side
    5,061.68x = 20,649,341.84
  5. Step 5: Solve for x
    x = 20,649,341.84/5,061.68
  6. Step 6: Final answer
    x = 4,079.54

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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.