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Finding the Fourth Proportional to 2,909.98, 4,017.77 and 2,724.08

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Solution

The fourth proportional to 2,909.98, 4,017.77 and 2,724.08 is: 3,761.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.98 : 4,017.77 = 2,724.08 : x
  2. Step 2: Convert to fraction form
    2,909.98/4,017.77 = 2,724.08/x
  3. Step 3: Cross multiply
    2,909.98x = 4,017.77 × 2,724.08
  4. Step 4: Simplify right side
    2,909.98x = 10,944,743.76
  5. Step 5: Solve for x
    x = 10,944,743.76/2,909.98
  6. Step 6: Final answer
    x = 3,761.11

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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.