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Finding the Fourth Proportional to 2,999.93, 4,142.52 and 1,882.79

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Solution

The fourth proportional to 2,999.93, 4,142.52 and 1,882.79 is: 2,599.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.93 : 4,142.52 = 1,882.79 : x
  2. Step 2: Convert to fraction form
    2,999.93/4,142.52 = 1,882.79/x
  3. Step 3: Cross multiply
    2,999.93x = 4,142.52 × 1,882.79
  4. Step 4: Simplify right side
    2,999.93x = 7,799,505.59
  5. Step 5: Solve for x
    x = 7,799,505.59/2,999.93
  6. Step 6: Final answer
    x = 2,599.89

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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.