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Finding the Fourth Proportional to 1,718.92, 2,574.89 and 793.18

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Solution

The fourth proportional to 1,718.92, 2,574.89 and 793.18 is: 1,188.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,718.92 : 2,574.89 = 793.18 : x
  2. Step 2: Convert to fraction form
    1,718.92/2,574.89 = 793.18/x
  3. Step 3: Cross multiply
    1,718.92x = 2,574.89 × 793.18
  4. Step 4: Simplify right side
    1,718.92x = 2,042,334.41
  5. Step 5: Solve for x
    x = 2,042,334.41/1,718.92
  6. Step 6: Final answer
    x = 1,188.15

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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.