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Finding the Fourth Proportional to 2,661.39, 3,672.72 and 1,482.69

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Solution

The fourth proportional to 2,661.39, 3,672.72 and 1,482.69 is: 2,046.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,661.39 : 3,672.72 = 1,482.69 : x
  2. Step 2: Convert to fraction form
    2,661.39/3,672.72 = 1,482.69/x
  3. Step 3: Cross multiply
    2,661.39x = 3,672.72 × 1,482.69
  4. Step 4: Simplify right side
    2,661.39x = 5,445,505.22
  5. Step 5: Solve for x
    x = 5,445,505.22/2,661.39
  6. Step 6: Final answer
    x = 2,046.11

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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.