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Finding the Fourth Proportional to 5,757.09, 7,944.49 and 3,398.77

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Solution

The fourth proportional to 5,757.09, 7,944.49 and 3,398.77 is: 4,690.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,757.09 : 7,944.49 = 3,398.77 : x
  2. Step 2: Convert to fraction form
    5,757.09/7,944.49 = 3,398.77/x
  3. Step 3: Cross multiply
    5,757.09x = 7,944.49 × 3,398.77
  4. Step 4: Simplify right side
    5,757.09x = 27,001,477.28
  5. Step 5: Solve for x
    x = 27,001,477.28/5,757.09
  6. Step 6: Final answer
    x = 4,690.13

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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.