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Finding the Fourth Proportional to 2,116.48, 3,174.96 and 884.48

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Solution

The fourth proportional to 2,116.48, 3,174.96 and 884.48 is: 1,326.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116.48 : 3,174.96 = 884.48 : x
  2. Step 2: Convert to fraction form
    2,116.48/3,174.96 = 884.48/x
  3. Step 3: Cross multiply
    2,116.48x = 3,174.96 × 884.48
  4. Step 4: Simplify right side
    2,116.48x = 2,808,188.62
  5. Step 5: Solve for x
    x = 2,808,188.62/2,116.48
  6. Step 6: Final answer
    x = 1,326.82

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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.