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Finding the Third Proportional to 49,043 and 77,699

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Solution

The third proportional to 49,043 and 77,699 is: 123,098.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,043 : 77,699 = 77,699 : x
  2. Step 2: Convert to fraction form
    49,043/77,699 = 77,699/x
  3. Step 3: Cross multiply
    49,043x = 77,699 × 77,699
  4. Step 4: Simplify right side
    49,043x = 6,037,134,601
  5. Step 5: Solve for x
    x = 6,037,134,601/49,043
  6. Step 6: Final answer
    x = 123,098.80

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.