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Finding the Fourth Proportional to 22,482.80, 30,997.44 and 18,434.73

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Solution

The fourth proportional to 22,482.80, 30,997.44 and 18,434.73 is: 25,416.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,482.80 : 30,997.44 = 18,434.73 : x
  2. Step 2: Convert to fraction form
    22,482.80/30,997.44 = 18,434.73/x
  3. Step 3: Cross multiply
    22,482.80x = 30,997.44 × 18,434.73
  4. Step 4: Simplify right side
    22,482.80x = 571,429,305.15
  5. Step 5: Solve for x
    x = 571,429,305.15/22,482.80
  6. Step 6: Final answer
    x = 25,416.29

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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.