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Finding the Fourth Proportional to 2,716.71, 3,749.18 and 1,669.11

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Solution

The fourth proportional to 2,716.71, 3,749.18 and 1,669.11 is: 2,303.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,716.71 : 3,749.18 = 1,669.11 : x
  2. Step 2: Convert to fraction form
    2,716.71/3,749.18 = 1,669.11/x
  3. Step 3: Cross multiply
    2,716.71x = 3,749.18 × 1,669.11
  4. Step 4: Simplify right side
    2,716.71x = 6,257,793.83
  5. Step 5: Solve for x
    x = 6,257,793.83/2,716.71
  6. Step 6: Final answer
    x = 2,303.45

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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.