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Finding the Fourth Proportional to 2,073.61, 3,108.44 and 757.02

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Solution

The fourth proportional to 2,073.61, 3,108.44 and 757.02 is: 1,134.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,073.61 : 3,108.44 = 757.02 : x
  2. Step 2: Convert to fraction form
    2,073.61/3,108.44 = 757.02/x
  3. Step 3: Cross multiply
    2,073.61x = 3,108.44 × 757.02
  4. Step 4: Simplify right side
    2,073.61x = 2,353,157.65
  5. Step 5: Solve for x
    x = 2,353,157.65/2,073.61
  6. Step 6: Final answer
    x = 1,134.81

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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.