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Finding the Fourth Proportional to 8,706.96, 12,012.24 and 6,188.28

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Solution

The fourth proportional to 8,706.96, 12,012.24 and 6,188.28 is: 8,537.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,706.96 : 12,012.24 = 6,188.28 : x
  2. Step 2: Convert to fraction form
    8,706.96/12,012.24 = 6,188.28/x
  3. Step 3: Cross multiply
    8,706.96x = 12,012.24 × 6,188.28
  4. Step 4: Simplify right side
    8,706.96x = 74,335,104.55
  5. Step 5: Solve for x
    x = 74,335,104.55/8,706.96
  6. Step 6: Final answer
    x = 8,537.43

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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.