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Finding the Third Proportional to 4,765.50 and 11,421

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Solution

The third proportional to 4,765.50 and 11,421 is: 27,371.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,765.50 : 11,421 = 11,421 : x
  2. Step 2: Convert to fraction form
    4,765.50/11,421 = 11,421/x
  3. Step 3: Cross multiply
    4,765.50x = 11,421 × 11,421
  4. Step 4: Simplify right side
    4,765.50x = 130,439,241
  5. Step 5: Solve for x
    x = 130,439,241/4,765.50
  6. Step 6: Final answer
    x = 27,371.58

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Why These Related Problems?

These problems maintain the same ratio (2.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.