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Finding the Fourth Proportional to 14,792.86, 20,414.97 and 8,079.11

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Solution

The fourth proportional to 14,792.86, 20,414.97 and 8,079.11 is: 11,149.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,792.86 : 20,414.97 = 8,079.11 : x
  2. Step 2: Convert to fraction form
    14,792.86/20,414.97 = 8,079.11/x
  3. Step 3: Cross multiply
    14,792.86x = 20,414.97 × 8,079.11
  4. Step 4: Simplify right side
    14,792.86x = 164,934,788.28
  5. Step 5: Solve for x
    x = 164,934,788.28/14,792.86
  6. Step 6: Final answer
    x = 11,149.62

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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.