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Finding the Fourth Proportional to 8,844.75, 12,205.76 and 5,118.75

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Solution

The fourth proportional to 8,844.75, 12,205.76 and 5,118.75 is: 7,063.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,844.75 : 12,205.76 = 5,118.75 : x
  2. Step 2: Convert to fraction form
    8,844.75/12,205.76 = 5,118.75/x
  3. Step 3: Cross multiply
    8,844.75x = 12,205.76 × 5,118.75
  4. Step 4: Simplify right side
    8,844.75x = 62,478,208.41
  5. Step 5: Solve for x
    x = 62,478,208.41/8,844.75
  6. Step 6: Final answer
    x = 7,063.88

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Half scale
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Double scale
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Similar ratio
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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.