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Finding the Fourth Proportional to 18,489.25, 27,733.88 and 6,177.25

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Solution

The fourth proportional to 18,489.25, 27,733.88 and 6,177.25 is: 9,265.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,489.25 : 27,733.88 = 6,177.25 : x
  2. Step 2: Convert to fraction form
    18,489.25/27,733.88 = 6,177.25/x
  3. Step 3: Cross multiply
    18,489.25x = 27,733.88 × 6,177.25
  4. Step 4: Simplify right side
    18,489.25x = 171,319,079.34
  5. Step 5: Solve for x
    x = 171,319,079.34/18,489.25
  6. Step 6: Final answer
    x = 9,265.88

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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.