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Finding the Fourth Proportional to 2,053.10, 3,080.10 and 1,174.70

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Solution

The fourth proportional to 2,053.10, 3,080.10 and 1,174.70 is: 1,762.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,053.10 : 3,080.10 = 1,174.70 : x
  2. Step 2: Convert to fraction form
    2,053.10/3,080.10 = 1,174.70/x
  3. Step 3: Cross multiply
    2,053.10x = 3,080.10 × 1,174.70
  4. Step 4: Simplify right side
    2,053.10x = 3,618,193.47
  5. Step 5: Solve for x
    x = 3,618,193.47/2,053.10
  6. Step 6: Final answer
    x = 1,762.31

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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.