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Finding the Fourth Proportional to 8,866.66, 12,236.25 and 4,887.82

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Solution

The fourth proportional to 8,866.66, 12,236.25 and 4,887.82 is: 6,745.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,866.66 : 12,236.25 = 4,887.82 : x
  2. Step 2: Convert to fraction form
    8,866.66/12,236.25 = 4,887.82/x
  3. Step 3: Cross multiply
    8,866.66x = 12,236.25 × 4,887.82
  4. Step 4: Simplify right side
    8,866.66x = 59,808,587.48
  5. Step 5: Solve for x
    x = 59,808,587.48/8,866.66
  6. Step 6: Final answer
    x = 6,745.33

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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.