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Finding the Fourth Proportional to 17,816.78, 26,724.20 and 6,723.20

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Solution

The fourth proportional to 17,816.78, 26,724.20 and 6,723.20 is: 10,084.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,816.78 : 26,724.20 = 6,723.20 : x
  2. Step 2: Convert to fraction form
    17,816.78/26,724.20 = 6,723.20/x
  3. Step 3: Cross multiply
    17,816.78x = 26,724.20 × 6,723.20
  4. Step 4: Simplify right side
    17,816.78x = 179,671,974.20
  5. Step 5: Solve for x
    x = 179,671,974.20/17,816.78
  6. Step 6: Final answer
    x = 10,084.43

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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.