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Finding the Third Proportional to 5,629.50 and 11,988

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Solution

The third proportional to 5,629.50 and 11,988 is: 25,528.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,629.50 : 11,988 = 11,988 : x
  2. Step 2: Convert to fraction form
    5,629.50/11,988 = 11,988/x
  3. Step 3: Cross multiply
    5,629.50x = 11,988 × 11,988
  4. Step 4: Simplify right side
    5,629.50x = 143,712,144
  5. Step 5: Solve for x
    x = 143,712,144/5,629.50
  6. Step 6: Final answer
    x = 25,528.40

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.