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Finding the Fourth Proportional to 1,850.81, 2,553.49 and 1,104.90

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Solution

The fourth proportional to 1,850.81, 2,553.49 and 1,104.90 is: 1,524.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,850.81 : 2,553.49 = 1,104.90 : x
  2. Step 2: Convert to fraction form
    1,850.81/2,553.49 = 1,104.90/x
  3. Step 3: Cross multiply
    1,850.81x = 2,553.49 × 1,104.90
  4. Step 4: Simplify right side
    1,850.81x = 2,821,342.91
  5. Step 5: Solve for x
    x = 2,821,342.91/1,850.81
  6. Step 6: Final answer
    x = 1,524.39

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Double scale
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1.5x scale

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.