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Finding the Fourth Proportional to 16,654.11, 22,992.86 and 15,854.87

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Solution

The fourth proportional to 16,654.11, 22,992.86 and 15,854.87 is: 21,889.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,654.11 : 22,992.86 = 15,854.87 : x
  2. Step 2: Convert to fraction form
    16,654.11/22,992.86 = 15,854.87/x
  3. Step 3: Cross multiply
    16,654.11x = 22,992.86 × 15,854.87
  4. Step 4: Simplify right side
    16,654.11x = 364,548,903.35
  5. Step 5: Solve for x
    x = 364,548,903.35/16,654.11
  6. Step 6: Final answer
    x = 21,889.43

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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.