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Finding the Fourth Proportional to 1,850.68, 2,553.90 and 1,064.68

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Solution

The fourth proportional to 1,850.68, 2,553.90 and 1,064.68 is: 1,469.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,850.68 : 2,553.90 = 1,064.68 : x
  2. Step 2: Convert to fraction form
    1,850.68/2,553.90 = 1,064.68/x
  3. Step 3: Cross multiply
    1,850.68x = 2,553.90 × 1,064.68
  4. Step 4: Simplify right side
    1,850.68x = 2,719,086.25
  5. Step 5: Solve for x
    x = 2,719,086.25/1,850.68
  6. Step 6: Final answer
    x = 1,469.24

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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.