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Finding the Fourth Proportional to 1,872.01, 2,585.12 and 1,174.60

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Solution

The fourth proportional to 1,872.01, 2,585.12 and 1,174.60 is: 1,622.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872.01 : 2,585.12 = 1,174.60 : x
  2. Step 2: Convert to fraction form
    1,872.01/2,585.12 = 1,174.60/x
  3. Step 3: Cross multiply
    1,872.01x = 2,585.12 × 1,174.60
  4. Step 4: Simplify right side
    1,872.01x = 3,036,481.95
  5. Step 5: Solve for x
    x = 3,036,481.95/1,872.01
  6. Step 6: Final answer
    x = 1,622.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.