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Finding the Fourth Proportional to 16,064.76, 22,167.90 and 8,990.76

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Solution

The fourth proportional to 16,064.76, 22,167.90 and 8,990.76 is: 12,406.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,064.76 : 22,167.90 = 8,990.76 : x
  2. Step 2: Convert to fraction form
    16,064.76/22,167.90 = 8,990.76/x
  3. Step 3: Cross multiply
    16,064.76x = 22,167.90 × 8,990.76
  4. Step 4: Simplify right side
    16,064.76x = 199,306,268.60
  5. Step 5: Solve for x
    x = 199,306,268.60/16,064.76
  6. Step 6: Final answer
    x = 12,406.43

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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.