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Finding the Fourth Proportional to 8,866.62, 12,236.13 and 4,887.97

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Solution

The fourth proportional to 8,866.62, 12,236.13 and 4,887.97 is: 6,745.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,866.62 : 12,236.13 = 4,887.97 : x
  2. Step 2: Convert to fraction form
    8,866.62/12,236.13 = 4,887.97/x
  3. Step 3: Cross multiply
    8,866.62x = 12,236.13 × 4,887.97
  4. Step 4: Simplify right side
    8,866.62x = 59,809,805.77
  5. Step 5: Solve for x
    x = 59,809,805.77/8,866.62
  6. Step 6: Final answer
    x = 6,745.50

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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.