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Finding the Fourth Proportional to 8,338.76, 11,508.90 and 4,801.32

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Solution

The fourth proportional to 8,338.76, 11,508.90 and 4,801.32 is: 6,626.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,338.76 : 11,508.90 = 4,801.32 : x
  2. Step 2: Convert to fraction form
    8,338.76/11,508.90 = 4,801.32/x
  3. Step 3: Cross multiply
    8,338.76x = 11,508.90 × 4,801.32
  4. Step 4: Simplify right side
    8,338.76x = 55,257,911.75
  5. Step 5: Solve for x
    x = 55,257,911.75/8,338.76
  6. Step 6: Final answer
    x = 6,626.63

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Half 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.