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Finding the Fourth Proportional to 11,792.55, 16,272.99 and 7,079.43

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Solution

The fourth proportional to 11,792.55, 16,272.99 and 7,079.43 is: 9,769.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,792.55 : 16,272.99 = 7,079.43 : x
  2. Step 2: Convert to fraction form
    11,792.55/16,272.99 = 7,079.43/x
  3. Step 3: Cross multiply
    11,792.55x = 16,272.99 × 7,079.43
  4. Step 4: Simplify right side
    11,792.55x = 115,203,493.60
  5. Step 5: Solve for x
    x = 115,203,493.60/11,792.55
  6. Step 6: Final answer
    x = 9,769.18

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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.