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Finding the Fourth Proportional to 2,053.18, 3,080.16 and 754.66

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Solution

The fourth proportional to 2,053.18, 3,080.16 and 754.66 is: 1,132.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,053.18 : 3,080.16 = 754.66 : x
  2. Step 2: Convert to fraction form
    2,053.18/3,080.16 = 754.66/x
  3. Step 3: Cross multiply
    2,053.18x = 3,080.16 × 754.66
  4. Step 4: Simplify right side
    2,053.18x = 2,324,473.55
  5. Step 5: Solve for x
    x = 2,324,473.55/2,053.18
  6. Step 6: Final answer
    x = 1,132.13

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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.