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Finding the Fourth Proportional to 13,371.76, 20,064.12 and 6,350.68

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Solution

The fourth proportional to 13,371.76, 20,064.12 and 6,350.68 is: 9,529.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,371.76 : 20,064.12 = 6,350.68 : x
  2. Step 2: Convert to fraction form
    13,371.76/20,064.12 = 6,350.68/x
  3. Step 3: Cross multiply
    13,371.76x = 20,064.12 × 6,350.68
  4. Step 4: Simplify right side
    13,371.76x = 127,420,805.60
  5. Step 5: Solve for x
    x = 127,420,805.60/13,371.76
  6. Step 6: Final answer
    x = 9,529.10

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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.