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Finding the Fourth Proportional to 2,184.93, 3,275.42 and 797.28

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Solution

The fourth proportional to 2,184.93, 3,275.42 and 797.28 is: 1,195.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,184.93 : 3,275.42 = 797.28 : x
  2. Step 2: Convert to fraction form
    2,184.93/3,275.42 = 797.28/x
  3. Step 3: Cross multiply
    2,184.93x = 3,275.42 × 797.28
  4. Step 4: Simplify right side
    2,184.93x = 2,611,428.85
  5. Step 5: Solve for x
    x = 2,611,428.85/2,184.93
  6. Step 6: Final answer
    x = 1,195.20

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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.