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Finding the Fourth Proportional to 2,411.68, 3,325.20 and 2,038

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Solution

The fourth proportional to 2,411.68, 3,325.20 and 2,038 is: 2,809.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,411.68 : 3,325.20 = 2,038 : x
  2. Step 2: Convert to fraction form
    2,411.68/3,325.20 = 2,038/x
  3. Step 3: Cross multiply
    2,411.68x = 3,325.20 × 2,038
  4. Step 4: Simplify right side
    2,411.68x = 6,776,757.60
  5. Step 5: Solve for x
    x = 6,776,757.60/2,411.68
  6. Step 6: Final answer
    x = 2,809.97

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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.