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Finding the Fourth Proportional to 13,737.42, 20,605.56 and 6,339.42

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Solution

The fourth proportional to 13,737.42, 20,605.56 and 6,339.42 is: 9,508.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,737.42 : 20,605.56 = 6,339.42 : x
  2. Step 2: Convert to fraction form
    13,737.42/20,605.56 = 6,339.42/x
  3. Step 3: Cross multiply
    13,737.42x = 20,605.56 × 6,339.42
  4. Step 4: Simplify right side
    13,737.42x = 130,627,299.18
  5. Step 5: Solve for x
    x = 130,627,299.18/13,737.42
  6. Step 6: Final answer
    x = 9,508.87

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1.5x scale

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.