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Finding the Fourth Proportional to 8,800.70, 12,144.57 and 4,821.73

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Solution

The fourth proportional to 8,800.70, 12,144.57 and 4,821.73 is: 6,653.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,800.70 : 12,144.57 = 4,821.73 : x
  2. Step 2: Convert to fraction form
    8,800.70/12,144.57 = 4,821.73/x
  3. Step 3: Cross multiply
    8,800.70x = 12,144.57 × 4,821.73
  4. Step 4: Simplify right side
    8,800.70x = 58,557,789.06
  5. Step 5: Solve for x
    x = 58,557,789.06/8,800.70
  6. Step 6: Final answer
    x = 6,653.76

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Half scale
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Double scale
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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.