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Finding the Fourth Proportional to 18,001.62, 26,983.96 and 6,905.32

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Solution

The fourth proportional to 18,001.62, 26,983.96 and 6,905.32 is: 10,350.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,001.62 : 26,983.96 = 6,905.32 : x
  2. Step 2: Convert to fraction form
    18,001.62/26,983.96 = 6,905.32/x
  3. Step 3: Cross multiply
    18,001.62x = 26,983.96 × 6,905.32
  4. Step 4: Simplify right side
    18,001.62x = 186,332,793.94
  5. Step 5: Solve for x
    x = 186,332,793.94/18,001.62
  6. Step 6: Final answer
    x = 10,350.89

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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.