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Finding the Fourth Proportional to 8,865.87, 12,235.16 and 4,887.24

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Solution

The fourth proportional to 8,865.87, 12,235.16 and 4,887.24 is: 6,744.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,865.87 : 12,235.16 = 4,887.24 : x
  2. Step 2: Convert to fraction form
    8,865.87/12,235.16 = 4,887.24/x
  3. Step 3: Cross multiply
    8,865.87x = 12,235.16 × 4,887.24
  4. Step 4: Simplify right side
    8,865.87x = 59,796,163.36
  5. Step 5: Solve for x
    x = 59,796,163.36/8,865.87
  6. Step 6: Final answer
    x = 6,744.53

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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.