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Finding the Third Proportional to 4,522 and 7,755

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Solution

The third proportional to 4,522 and 7,755 is: 13,299.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,522 : 7,755 = 7,755 : x
  2. Step 2: Convert to fraction form
    4,522/7,755 = 7,755/x
  3. Step 3: Cross multiply
    4,522x = 7,755 × 7,755
  4. Step 4: Simplify right side
    4,522x = 60,140,025
  5. Step 5: Solve for x
    x = 60,140,025/4,522
  6. Step 6: Final answer
    x = 13,299.43

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Why These Related Problems?

These problems maintain the same ratio (1.71) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.