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Finding the Fourth Proportional to 28,162.00, 38,850.44 and 16,218.42

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Solution

The fourth proportional to 28,162.00, 38,850.44 and 16,218.42 is: 22,373.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,162.00 : 38,850.44 = 16,218.42 : x
  2. Step 2: Convert to fraction form
    28,162.00/38,850.44 = 16,218.42/x
  3. Step 3: Cross multiply
    28,162.00x = 38,850.44 × 16,218.42
  4. Step 4: Simplify right side
    28,162.00x = 630,092,836.09
  5. Step 5: Solve for x
    x = 630,092,836.09/28,162.00
  6. Step 6: Final answer
    x = 22,373.87

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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.