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Finding the Fourth Proportional to 8,866.43, 12,235.77 and 4,887.44

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Solution

The fourth proportional to 8,866.43, 12,235.77 and 4,887.44 is: 6,744.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,866.43 : 12,235.77 = 4,887.44 : x
  2. Step 2: Convert to fraction form
    8,866.43/12,235.77 = 4,887.44/x
  3. Step 3: Cross multiply
    8,866.43x = 12,235.77 × 4,887.44
  4. Step 4: Simplify right side
    8,866.43x = 59,801,530.55
  5. Step 5: Solve for x
    x = 59,801,530.55/8,866.43
  6. Step 6: Final answer
    x = 6,744.72

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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.