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Finding the Fourth Proportional to 18,497.61, 27,734.22 and 6,645.44

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Solution

The fourth proportional to 18,497.61, 27,734.22 and 6,645.44 is: 9,963.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,497.61 : 27,734.22 = 6,645.44 : x
  2. Step 2: Convert to fraction form
    18,497.61/27,734.22 = 6,645.44/x
  3. Step 3: Cross multiply
    18,497.61x = 27,734.22 × 6,645.44
  4. Step 4: Simplify right side
    18,497.61x = 184,306,164.29
  5. Step 5: Solve for x
    x = 184,306,164.29/18,497.61
  6. Step 6: Final answer
    x = 9,963.78

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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.