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Finding the Fourth Proportional to 2,711.19, 4,066.97 and 955.98

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Solution

The fourth proportional to 2,711.19, 4,066.97 and 955.98 is: 1,434.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,711.19 : 4,066.97 = 955.98 : x
  2. Step 2: Convert to fraction form
    2,711.19/4,066.97 = 955.98/x
  3. Step 3: Cross multiply
    2,711.19x = 4,066.97 × 955.98
  4. Step 4: Simplify right side
    2,711.19x = 3,887,937.20
  5. Step 5: Solve for x
    x = 3,887,937.20/2,711.19
  6. Step 6: Final answer
    x = 1,434.03

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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.