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Finding the Fourth Proportional to 8,369.96, 12,554.92 and 3,436.12

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Solution

The fourth proportional to 8,369.96, 12,554.92 and 3,436.12 is: 5,154.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,369.96 : 12,554.92 = 3,436.12 : x
  2. Step 2: Convert to fraction form
    8,369.96/12,554.92 = 3,436.12/x
  3. Step 3: Cross multiply
    8,369.96x = 12,554.92 × 3,436.12
  4. Step 4: Simplify right side
    8,369.96x = 43,140,241.36
  5. Step 5: Solve for x
    x = 43,140,241.36/8,369.96
  6. Step 6: Final answer
    x = 5,154.18

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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.