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Finding the Fourth Proportional to 3,892.72, 5,839.44 and 2,590.24

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Solution

The fourth proportional to 3,892.72, 5,839.44 and 2,590.24 is: 3,885.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,892.72 : 5,839.44 = 2,590.24 : x
  2. Step 2: Convert to fraction form
    3,892.72/5,839.44 = 2,590.24/x
  3. Step 3: Cross multiply
    3,892.72x = 5,839.44 × 2,590.24
  4. Step 4: Simplify right side
    3,892.72x = 15,125,551.07
  5. Step 5: Solve for x
    x = 15,125,551.07/3,892.72
  6. Step 6: Final answer
    x = 3,885.60

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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.