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Finding the Fourth Proportional to 2,488.60, 3,733.38 and 757.24

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Solution

The fourth proportional to 2,488.60, 3,733.38 and 757.24 is: 1,136.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,488.60 : 3,733.38 = 757.24 : x
  2. Step 2: Convert to fraction form
    2,488.60/3,733.38 = 757.24/x
  3. Step 3: Cross multiply
    2,488.60x = 3,733.38 × 757.24
  4. Step 4: Simplify right side
    2,488.60x = 2,827,064.67
  5. Step 5: Solve for x
    x = 2,827,064.67/2,488.60
  6. Step 6: Final answer
    x = 1,136.01

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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.