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Finding the Fourth Proportional to 2,474.74, 3,712.34 and 695.79

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Solution

The fourth proportional to 2,474.74, 3,712.34 and 695.79 is: 1,043.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,474.74 : 3,712.34 = 695.79 : x
  2. Step 2: Convert to fraction form
    2,474.74/3,712.34 = 695.79/x
  3. Step 3: Cross multiply
    2,474.74x = 3,712.34 × 695.79
  4. Step 4: Simplify right side
    2,474.74x = 2,583,008.83
  5. Step 5: Solve for x
    x = 2,583,008.83/2,474.74
  6. Step 6: Final answer
    x = 1,043.75

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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.