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Finding the Fourth Proportional to 5,488.73, 7,575.87 and 3,391.64

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Solution

The fourth proportional to 5,488.73, 7,575.87 and 3,391.64 is: 4,681.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,488.73 : 7,575.87 = 3,391.64 : x
  2. Step 2: Convert to fraction form
    5,488.73/7,575.87 = 3,391.64/x
  3. Step 3: Cross multiply
    5,488.73x = 7,575.87 × 3,391.64
  4. Step 4: Simplify right side
    5,488.73x = 25,694,623.73
  5. Step 5: Solve for x
    x = 25,694,623.73/5,488.73
  6. Step 6: Final answer
    x = 4,681.34

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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.