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Finding the Fourth Proportional to 18,328.76, 27,493.13 and 6,641.96

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Solution

The fourth proportional to 18,328.76, 27,493.13 and 6,641.96 is: 9,962.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,328.76 : 27,493.13 = 6,641.96 : x
  2. Step 2: Convert to fraction form
    18,328.76/27,493.13 = 6,641.96/x
  3. Step 3: Cross multiply
    18,328.76x = 27,493.13 × 6,641.96
  4. Step 4: Simplify right side
    18,328.76x = 182,608,269.73
  5. Step 5: Solve for x
    x = 182,608,269.73/18,328.76
  6. Step 6: Final answer
    x = 9,962.94

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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.