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Finding the Fourth Proportional to 3,593.99, 5,391.24 and 1,128.77

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Solution

The fourth proportional to 3,593.99, 5,391.24 and 1,128.77 is: 1,693.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,593.99 : 5,391.24 = 1,128.77 : x
  2. Step 2: Convert to fraction form
    3,593.99/5,391.24 = 1,128.77/x
  3. Step 3: Cross multiply
    3,593.99x = 5,391.24 × 1,128.77
  4. Step 4: Simplify right side
    3,593.99x = 6,085,483.45
  5. Step 5: Solve for x
    x = 6,085,483.45/3,593.99
  6. Step 6: Final answer
    x = 1,693.24

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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.