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Finding the Fourth Proportional to 1,756.74, 2,418.75 and 1,546.77

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Solution

The fourth proportional to 1,756.74, 2,418.75 and 1,546.77 is: 2,129.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,756.74 : 2,418.75 = 1,546.77 : x
  2. Step 2: Convert to fraction form
    1,756.74/2,418.75 = 1,546.77/x
  3. Step 3: Cross multiply
    1,756.74x = 2,418.75 × 1,546.77
  4. Step 4: Simplify right side
    1,756.74x = 3,741,249.94
  5. Step 5: Solve for x
    x = 3,741,249.94/1,756.74
  6. Step 6: Final answer
    x = 2,129.65

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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.