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Finding the Third Proportional to 4,938.75 and 7,213.13

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Solution

The third proportional to 4,938.75 and 7,213.13 is: 10,534.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,938.75 : 7,213.13 = 7,213.13 : x
  2. Step 2: Convert to fraction form
    4,938.75/7,213.13 = 7,213.13/x
  3. Step 3: Cross multiply
    4,938.75x = 7,213.13 × 7,213.13
  4. Step 4: Simplify right side
    4,938.75x = 52,029,172.27
  5. Step 5: Solve for x
    x = 52,029,172.27/4,938.75
  6. Step 6: Final answer
    x = 10,534.89

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.