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Finding the Third Proportional to 64,791 and 105,798

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Solution

The third proportional to 64,791 and 105,798 is: 172,758.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,791 : 105,798 = 105,798 : x
  2. Step 2: Convert to fraction form
    64,791/105,798 = 105,798/x
  3. Step 3: Cross multiply
    64,791x = 105,798 × 105,798
  4. Step 4: Simplify right side
    64,791x = 11,193,216,804
  5. Step 5: Solve for x
    x = 11,193,216,804/64,791
  6. Step 6: Final answer
    x = 172,758.82

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.