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Finding the Fourth Proportional to 2,031.68, 3,045.18 and 798.41

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Solution

The fourth proportional to 2,031.68, 3,045.18 and 798.41 is: 1,196.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,031.68 : 3,045.18 = 798.41 : x
  2. Step 2: Convert to fraction form
    2,031.68/3,045.18 = 798.41/x
  3. Step 3: Cross multiply
    2,031.68x = 3,045.18 × 798.41
  4. Step 4: Simplify right side
    2,031.68x = 2,431,302.16
  5. Step 5: Solve for x
    x = 2,431,302.16/2,031.68
  6. Step 6: Final answer
    x = 1,196.70

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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.