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Finding the Fourth Proportional to 8,706.72, 13,034.16 and 5,233.44

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Solution

The fourth proportional to 8,706.72, 13,034.16 and 5,233.44 is: 7,834.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,706.72 : 13,034.16 = 5,233.44 : x
  2. Step 2: Convert to fraction form
    8,706.72/13,034.16 = 5,233.44/x
  3. Step 3: Cross multiply
    8,706.72x = 13,034.16 × 5,233.44
  4. Step 4: Simplify right side
    8,706.72x = 68,213,494.31
  5. Step 5: Solve for x
    x = 68,213,494.31/8,706.72
  6. Step 6: Final answer
    x = 7,834.58

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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.