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Finding the Fourth Proportional to 5,652.30, 7,791.98 and 3,968.58

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Solution

The fourth proportional to 5,652.30, 7,791.98 and 3,968.58 is: 5,470.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,652.30 : 7,791.98 = 3,968.58 : x
  2. Step 2: Convert to fraction form
    5,652.30/7,791.98 = 3,968.58/x
  3. Step 3: Cross multiply
    5,652.30x = 7,791.98 × 3,968.58
  4. Step 4: Simplify right side
    5,652.30x = 30,923,095.99
  5. Step 5: Solve for x
    x = 30,923,095.99/5,652.30
  6. Step 6: Final answer
    x = 5,470.89

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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.