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Finding the Fourth Proportional to 18,374.56, 27,545.43 and 6,679.54

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Solution

The fourth proportional to 18,374.56, 27,545.43 and 6,679.54 is: 10,013.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,374.56 : 27,545.43 = 6,679.54 : x
  2. Step 2: Convert to fraction form
    18,374.56/27,545.43 = 6,679.54/x
  3. Step 3: Cross multiply
    18,374.56x = 27,545.43 × 6,679.54
  4. Step 4: Simplify right side
    18,374.56x = 183,990,801.50
  5. Step 5: Solve for x
    x = 183,990,801.50/18,374.56
  6. Step 6: Final answer
    x = 10,013.34

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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.