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Finding the Fourth Proportional to 9,179.73, 13,774.92 and 3,914.46

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Solution

The fourth proportional to 9,179.73, 13,774.92 and 3,914.46 is: 5,873.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,179.73 : 13,774.92 = 3,914.46 : x
  2. Step 2: Convert to fraction form
    9,179.73/13,774.92 = 3,914.46/x
  3. Step 3: Cross multiply
    9,179.73x = 13,774.92 × 3,914.46
  4. Step 4: Simplify right side
    9,179.73x = 53,921,373.34
  5. Step 5: Solve for x
    x = 53,921,373.34/9,179.73
  6. Step 6: Final answer
    x = 5,873.96

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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.