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Finding the Fourth Proportional to 3,572.88, 5,359.32 and 2,167.65

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Solution

The fourth proportional to 3,572.88, 5,359.32 and 2,167.65 is: 3,251.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,572.88 : 5,359.32 = 2,167.65 : x
  2. Step 2: Convert to fraction form
    3,572.88/5,359.32 = 2,167.65/x
  3. Step 3: Cross multiply
    3,572.88x = 5,359.32 × 2,167.65
  4. Step 4: Simplify right side
    3,572.88x = 11,617,130.00
  5. Step 5: Solve for x
    x = 11,617,130.00/3,572.88
  6. Step 6: Final answer
    x = 3,251.48

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.