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Finding the Fourth Proportional to 2,426.76, 3,640.14 and 695.16

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Solution

The fourth proportional to 2,426.76, 3,640.14 and 695.16 is: 1,042.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,426.76 : 3,640.14 = 695.16 : x
  2. Step 2: Convert to fraction form
    2,426.76/3,640.14 = 695.16/x
  3. Step 3: Cross multiply
    2,426.76x = 3,640.14 × 695.16
  4. Step 4: Simplify right side
    2,426.76x = 2,530,479.72
  5. Step 5: Solve for x
    x = 2,530,479.72/2,426.76
  6. Step 6: Final answer
    x = 1,042.74

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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.