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Finding the Fourth Proportional to 2,999.62, 4,142.02 and 1,882.42

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Solution

The fourth proportional to 2,999.62, 4,142.02 and 1,882.42 is: 2,599.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.62 : 4,142.02 = 1,882.42 : x
  2. Step 2: Convert to fraction form
    2,999.62/4,142.02 = 1,882.42/x
  3. Step 3: Cross multiply
    2,999.62x = 4,142.02 × 1,882.42
  4. Step 4: Simplify right side
    2,999.62x = 7,797,021.29
  5. Step 5: Solve for x
    x = 7,797,021.29/2,999.62
  6. Step 6: Final answer
    x = 2,599.34

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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.