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Finding the Fourth Proportional to 2,449.32, 3,673.97 and 988.46

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Solution

The fourth proportional to 2,449.32, 3,673.97 and 988.46 is: 1,482.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,449.32 : 3,673.97 = 988.46 : x
  2. Step 2: Convert to fraction form
    2,449.32/3,673.97 = 988.46/x
  3. Step 3: Cross multiply
    2,449.32x = 3,673.97 × 988.46
  4. Step 4: Simplify right side
    2,449.32x = 3,631,549.07
  5. Step 5: Solve for x
    x = 3,631,549.07/2,449.32
  6. Step 6: Final answer
    x = 1,482.68

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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.