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Finding the Fourth Proportional to 8,223.38, 11,348.68 and 4,868.12

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Solution

The fourth proportional to 8,223.38, 11,348.68 and 4,868.12 is: 6,718.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,223.38 : 11,348.68 = 4,868.12 : x
  2. Step 2: Convert to fraction form
    8,223.38/11,348.68 = 4,868.12/x
  3. Step 3: Cross multiply
    8,223.38x = 11,348.68 × 4,868.12
  4. Step 4: Simplify right side
    8,223.38x = 55,246,736.08
  5. Step 5: Solve for x
    x = 55,246,736.08/8,223.38
  6. Step 6: Final answer
    x = 6,718.25

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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.