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Finding the Fourth Proportional to 8,863.35, 13,246.05 and 8,351.22

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Solution

The fourth proportional to 8,863.35, 13,246.05 and 8,351.22 is: 12,480.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,863.35 : 13,246.05 = 8,351.22 : x
  2. Step 2: Convert to fraction form
    8,863.35/13,246.05 = 8,351.22/x
  3. Step 3: Cross multiply
    8,863.35x = 13,246.05 × 8,351.22
  4. Step 4: Simplify right side
    8,863.35x = 110,620,677.68
  5. Step 5: Solve for x
    x = 110,620,677.68/8,863.35
  6. Step 6: Final answer
    x = 12,480.68

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