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Finding the Fourth Proportional to 1,955.88, 2,713.77 and 1,939.14

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Solution

The fourth proportional to 1,955.88, 2,713.77 and 1,939.14 is: 2,690.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955.88 : 2,713.77 = 1,939.14 : x
  2. Step 2: Convert to fraction form
    1,955.88/2,713.77 = 1,939.14/x
  3. Step 3: Cross multiply
    1,955.88x = 2,713.77 × 1,939.14
  4. Step 4: Simplify right side
    1,955.88x = 5,262,379.96
  5. Step 5: Solve for x
    x = 5,262,379.96/1,955.88
  6. Step 6: Final answer
    x = 2,690.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.