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Finding the Fourth Proportional to 13,362.08, 20,014 and 7,515.68

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Solution

The fourth proportional to 13,362.08, 20,014 and 7,515.68 is: 11,257.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,362.08 : 20,014 = 7,515.68 : x
  2. Step 2: Convert to fraction form
    13,362.08/20,014 = 7,515.68/x
  3. Step 3: Cross multiply
    13,362.08x = 20,014 × 7,515.68
  4. Step 4: Simplify right side
    13,362.08x = 150,418,819.52
  5. Step 5: Solve for x
    x = 150,418,819.52/13,362.08
  6. Step 6: Final answer
    x = 11,257.14

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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.