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Finding the Fourth Proportional to 16,059.50, 22,162.11 and 8,987.29

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Solution

The fourth proportional to 16,059.50, 22,162.11 and 8,987.29 is: 12,402.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,059.50 : 22,162.11 = 8,987.29 : x
  2. Step 2: Convert to fraction form
    16,059.50/22,162.11 = 8,987.29/x
  3. Step 3: Cross multiply
    16,059.50x = 22,162.11 × 8,987.29
  4. Step 4: Simplify right side
    16,059.50x = 199,177,309.58
  5. Step 5: Solve for x
    x = 199,177,309.58/16,059.50
  6. Step 6: Final answer
    x = 12,402.46

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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.