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Finding the Fourth Proportional to 8,693.46, 13,040.11 and 3,144.73

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Solution

The fourth proportional to 8,693.46, 13,040.11 and 3,144.73 is: 4,717.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,693.46 : 13,040.11 = 3,144.73 : x
  2. Step 2: Convert to fraction form
    8,693.46/13,040.11 = 3,144.73/x
  3. Step 3: Cross multiply
    8,693.46x = 13,040.11 × 3,144.73
  4. Step 4: Simplify right side
    8,693.46x = 41,007,625.12
  5. Step 5: Solve for x
    x = 41,007,625.12/8,693.46
  6. Step 6: Final answer
    x = 4,717.07

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Half scale
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Double scale
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Similar ratio
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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.