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Finding the Fourth Proportional to 3,551.97, 5,328.17 and 1,086.96

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Solution

The fourth proportional to 3,551.97, 5,328.17 and 1,086.96 is: 1,630.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,551.97 : 5,328.17 = 1,086.96 : x
  2. Step 2: Convert to fraction form
    3,551.97/5,328.17 = 1,086.96/x
  3. Step 3: Cross multiply
    3,551.97x = 5,328.17 × 1,086.96
  4. Step 4: Simplify right side
    3,551.97x = 5,791,502.23
  5. Step 5: Solve for x
    x = 5,791,502.23/3,551.97
  6. Step 6: Final answer
    x = 1,630.50

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Half scale
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Double scale
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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.