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Finding the Third Proportional to 4,900 and 7,562

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Solution

The third proportional to 4,900 and 7,562 is: 11,670.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,900 : 7,562 = 7,562 : x
  2. Step 2: Convert to fraction form
    4,900/7,562 = 7,562/x
  3. Step 3: Cross multiply
    4,900x = 7,562 × 7,562
  4. Step 4: Simplify right side
    4,900x = 57,183,844
  5. Step 5: Solve for x
    x = 57,183,844/4,900
  6. Step 6: Final answer
    x = 11,670.17

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.