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Finding the Third Proportional to 3,249 and 7,130.25

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Solution

The third proportional to 3,249 and 7,130.25 is: 15,648.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,249 : 7,130.25 = 7,130.25 : x
  2. Step 2: Convert to fraction form
    3,249/7,130.25 = 7,130.25/x
  3. Step 3: Cross multiply
    3,249x = 7,130.25 × 7,130.25
  4. Step 4: Simplify right side
    3,249x = 50,840,465.06
  5. Step 5: Solve for x
    x = 50,840,465.06/3,249
  6. Step 6: Final answer
    x = 15,648.03

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.