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Finding the Fourth Proportional to 16,065.52, 22,167.96 and 8,991.04

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Solution

The fourth proportional to 16,065.52, 22,167.96 and 8,991.04 is: 12,406.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,065.52 : 22,167.96 = 8,991.04 : x
  2. Step 2: Convert to fraction form
    16,065.52/22,167.96 = 8,991.04/x
  3. Step 3: Cross multiply
    16,065.52x = 22,167.96 × 8,991.04
  4. Step 4: Simplify right side
    16,065.52x = 199,313,015.08
  5. Step 5: Solve for x
    x = 199,313,015.08/16,065.52
  6. Step 6: Final answer
    x = 12,406.26

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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.