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Finding the Fourth Proportional to 14,508.54, 20,023.20 and 8,136.22

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Solution

The fourth proportional to 14,508.54, 20,023.20 and 8,136.22 is: 11,228.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,508.54 : 20,023.20 = 8,136.22 : x
  2. Step 2: Convert to fraction form
    14,508.54/20,023.20 = 8,136.22/x
  3. Step 3: Cross multiply
    14,508.54x = 20,023.20 × 8,136.22
  4. Step 4: Simplify right side
    14,508.54x = 162,913,160.30
  5. Step 5: Solve for x
    x = 162,913,160.30/14,508.54
  6. Step 6: Final answer
    x = 11,228.78

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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.