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Finding the Fourth Proportional to 8,626.27, 11,902.27 and 6,239.74

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Solution

The fourth proportional to 8,626.27, 11,902.27 and 6,239.74 is: 8,609.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,626.27 : 11,902.27 = 6,239.74 : x
  2. Step 2: Convert to fraction form
    8,626.27/11,902.27 = 6,239.74/x
  3. Step 3: Cross multiply
    8,626.27x = 11,902.27 × 6,239.74
  4. Step 4: Simplify right side
    8,626.27x = 74,267,070.21
  5. Step 5: Solve for x
    x = 74,267,070.21/8,626.27
  6. Step 6: Final answer
    x = 8,609.41

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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.