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Finding the Fourth Proportional to 8,683.97, 11,984.45 and 8,370.27

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Solution

The fourth proportional to 8,683.97, 11,984.45 and 8,370.27 is: 11,551.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,683.97 : 11,984.45 = 8,370.27 : x
  2. Step 2: Convert to fraction form
    8,683.97/11,984.45 = 8,370.27/x
  3. Step 3: Cross multiply
    8,683.97x = 11,984.45 × 8,370.27
  4. Step 4: Simplify right side
    8,683.97x = 100,313,040.45
  5. Step 5: Solve for x
    x = 100,313,040.45/8,683.97
  6. Step 6: Final answer
    x = 11,551.53

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.