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Finding the Fourth Proportional to 1,950.70, 2,691.96 and 1,066.48

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Solution

The fourth proportional to 1,950.70, 2,691.96 and 1,066.48 is: 1,471.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,950.70 : 2,691.96 = 1,066.48 : x
  2. Step 2: Convert to fraction form
    1,950.70/2,691.96 = 1,066.48/x
  3. Step 3: Cross multiply
    1,950.70x = 2,691.96 × 1,066.48
  4. Step 4: Simplify right side
    1,950.70x = 2,870,921.50
  5. Step 5: Solve for x
    x = 2,870,921.50/1,950.70
  6. Step 6: Final answer
    x = 1,471.74

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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.