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Finding the Fourth Proportional to 18,873.42, 28,306.35 and 17,936.70

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Solution

The fourth proportional to 18,873.42, 28,306.35 and 17,936.70 is: 26,901.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,873.42 : 28,306.35 = 17,936.70 : x
  2. Step 2: Convert to fraction form
    18,873.42/28,306.35 = 17,936.70/x
  3. Step 3: Cross multiply
    18,873.42x = 28,306.35 × 17,936.70
  4. Step 4: Simplify right side
    18,873.42x = 507,722,508.05
  5. Step 5: Solve for x
    x = 507,722,508.05/18,873.42
  6. Step 6: Final answer
    x = 26,901.46

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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.