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Finding the Fourth Proportional to 5,367.68, 8,036.02 and 3,139.76

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Solution

The fourth proportional to 5,367.68, 8,036.02 and 3,139.76 is: 4,700.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,367.68 : 8,036.02 = 3,139.76 : x
  2. Step 2: Convert to fraction form
    5,367.68/8,036.02 = 3,139.76/x
  3. Step 3: Cross multiply
    5,367.68x = 8,036.02 × 3,139.76
  4. Step 4: Simplify right side
    5,367.68x = 25,231,174.16
  5. Step 5: Solve for x
    x = 25,231,174.16/5,367.68
  6. Step 6: Final answer
    x = 4,700.57

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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.