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Finding the Fourth Proportional to 17,958.92, 26,940.20 and 6,870.83

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Solution

The fourth proportional to 17,958.92, 26,940.20 and 6,870.83 is: 10,306.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,958.92 : 26,940.20 = 6,870.83 : x
  2. Step 2: Convert to fraction form
    17,958.92/26,940.20 = 6,870.83/x
  3. Step 3: Cross multiply
    17,958.92x = 26,940.20 × 6,870.83
  4. Step 4: Simplify right side
    17,958.92x = 185,101,365.31
  5. Step 5: Solve for x
    x = 185,101,365.31/17,958.92
  6. Step 6: Final answer
    x = 10,306.93

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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.