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Finding the Fourth Proportional to 17,939.70, 26,909.55 and 16,773.30

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Solution

The fourth proportional to 17,939.70, 26,909.55 and 16,773.30 is: 25,159.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,939.70 : 26,909.55 = 16,773.30 : x
  2. Step 2: Convert to fraction form
    17,939.70/26,909.55 = 16,773.30/x
  3. Step 3: Cross multiply
    17,939.70x = 26,909.55 × 16,773.30
  4. Step 4: Simplify right side
    17,939.70x = 451,361,955.02
  5. Step 5: Solve for x
    x = 451,361,955.02/17,939.70
  6. Step 6: Final answer
    x = 25,159.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.