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Finding the Third Proportional to 547.50 and 1,203

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Solution

The third proportional to 547.50 and 1,203 is: 2,643.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.50 : 1,203 = 1,203 : x
  2. Step 2: Convert to fraction form
    547.50/1,203 = 1,203/x
  3. Step 3: Cross multiply
    547.50x = 1,203 × 1,203
  4. Step 4: Simplify right side
    547.50x = 1,447,209
  5. Step 5: Solve for x
    x = 1,447,209/547.50
  6. Step 6: Final answer
    x = 2,643.30

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.