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Finding the Fourth Proportional to 2,962.38, 4,443.99 and 987.36

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Solution

The fourth proportional to 2,962.38, 4,443.99 and 987.36 is: 1,481.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,962.38 : 4,443.99 = 987.36 : x
  2. Step 2: Convert to fraction form
    2,962.38/4,443.99 = 987.36/x
  3. Step 3: Cross multiply
    2,962.38x = 4,443.99 × 987.36
  4. Step 4: Simplify right side
    2,962.38x = 4,387,817.97
  5. Step 5: Solve for x
    x = 4,387,817.97/2,962.38
  6. Step 6: Final answer
    x = 1,481.18

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1.5x scale

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.