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Finding the Fourth Proportional to 3,593.93, 5,391.13 and 1,128.85

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Solution

The fourth proportional to 3,593.93, 5,391.13 and 1,128.85 is: 1,693.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,593.93 : 5,391.13 = 1,128.85 : x
  2. Step 2: Convert to fraction form
    3,593.93/5,391.13 = 1,128.85/x
  3. Step 3: Cross multiply
    3,593.93x = 5,391.13 × 1,128.85
  4. Step 4: Simplify right side
    3,593.93x = 6,085,777.10
  5. Step 5: Solve for x
    x = 6,085,777.10/3,593.93
  6. Step 6: Final answer
    x = 1,693.35

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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.