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Finding the Fourth Proportional to 5,653.38, 7,801.68 and 3,169.38

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Solution

The fourth proportional to 5,653.38, 7,801.68 and 3,169.38 is: 4,373.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,653.38 : 7,801.68 = 3,169.38 : x
  2. Step 2: Convert to fraction form
    5,653.38/7,801.68 = 3,169.38/x
  3. Step 3: Cross multiply
    5,653.38x = 7,801.68 × 3,169.38
  4. Step 4: Simplify right side
    5,653.38x = 24,726,488.56
  5. Step 5: Solve for x
    x = 24,726,488.56/5,653.38
  6. Step 6: Final answer
    x = 4,373.75

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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.