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Finding the Fourth Proportional to 3,615.98, 4,990.01 and 2,043.97

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Solution

The fourth proportional to 3,615.98, 4,990.01 and 2,043.97 is: 2,820.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.98 : 4,990.01 = 2,043.97 : x
  2. Step 2: Convert to fraction form
    3,615.98/4,990.01 = 2,043.97/x
  3. Step 3: Cross multiply
    3,615.98x = 4,990.01 × 2,043.97
  4. Step 4: Simplify right side
    3,615.98x = 10,199,408.04
  5. Step 5: Solve for x
    x = 10,199,408.04/3,615.98
  6. Step 6: Final answer
    x = 2,820.65

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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.