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Finding the Fourth Proportional to 14,472.18, 19,972.60 and 8,099.38

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Solution

The fourth proportional to 14,472.18, 19,972.60 and 8,099.38 is: 11,177.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,472.18 : 19,972.60 = 8,099.38 : x
  2. Step 2: Convert to fraction form
    14,472.18/19,972.60 = 8,099.38/x
  3. Step 3: Cross multiply
    14,472.18x = 19,972.60 × 8,099.38
  4. Step 4: Simplify right side
    14,472.18x = 161,765,676.99
  5. Step 5: Solve for x
    x = 161,765,676.99/14,472.18
  6. Step 6: Final answer
    x = 11,177.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.