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Finding the Fourth Proportional to 1,676.67, 2,514.39 and 750.53

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Solution

The fourth proportional to 1,676.67, 2,514.39 and 750.53 is: 1,125.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,676.67 : 2,514.39 = 750.53 : x
  2. Step 2: Convert to fraction form
    1,676.67/2,514.39 = 750.53/x
  3. Step 3: Cross multiply
    1,676.67x = 2,514.39 × 750.53
  4. Step 4: Simplify right side
    1,676.67x = 1,887,132.82
  5. Step 5: Solve for x
    x = 1,887,132.82/1,676.67
  6. Step 6: Final answer
    x = 1,125.53

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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.