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Finding the Fourth Proportional to 8,605.10, 11,876.82 and 5,069.18

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Solution

The fourth proportional to 8,605.10, 11,876.82 and 5,069.18 is: 6,996.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,605.10 : 11,876.82 = 5,069.18 : x
  2. Step 2: Convert to fraction form
    8,605.10/11,876.82 = 5,069.18/x
  3. Step 3: Cross multiply
    8,605.10x = 11,876.82 × 5,069.18
  4. Step 4: Simplify right side
    8,605.10x = 60,205,738.41
  5. Step 5: Solve for x
    x = 60,205,738.41/8,605.10
  6. Step 6: Final answer
    x = 6,996.52

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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.