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Finding the Fourth Proportional to 8,728.97, 12,046.24 and 4,750.34

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Solution

The fourth proportional to 8,728.97, 12,046.24 and 4,750.34 is: 6,555.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,728.97 : 12,046.24 = 4,750.34 : x
  2. Step 2: Convert to fraction form
    8,728.97/12,046.24 = 4,750.34/x
  3. Step 3: Cross multiply
    8,728.97x = 12,046.24 × 4,750.34
  4. Step 4: Simplify right side
    8,728.97x = 57,223,711.97
  5. Step 5: Solve for x
    x = 57,223,711.97/8,728.97
  6. Step 6: Final answer
    x = 6,555.61

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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.