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Finding the Fourth Proportional to 2,909.92, 4,365.66 and 1,266.82

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Solution

The fourth proportional to 2,909.92, 4,365.66 and 1,266.82 is: 1,900.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.92 : 4,365.66 = 1,266.82 : x
  2. Step 2: Convert to fraction form
    2,909.92/4,365.66 = 1,266.82/x
  3. Step 3: Cross multiply
    2,909.92x = 4,365.66 × 1,266.82
  4. Step 4: Simplify right side
    2,909.92x = 5,530,505.40
  5. Step 5: Solve for x
    x = 5,530,505.40/2,909.92
  6. Step 6: Final answer
    x = 1,900.57

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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.