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Finding the Third Proportional to 21,928 and 46,776

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Solution

The third proportional to 21,928 and 46,776 is: 99,780.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,928 : 46,776 = 46,776 : x
  2. Step 2: Convert to fraction form
    21,928/46,776 = 46,776/x
  3. Step 3: Cross multiply
    21,928x = 46,776 × 46,776
  4. Step 4: Simplify right side
    21,928x = 2,187,994,176
  5. Step 5: Solve for x
    x = 2,187,994,176/21,928
  6. Step 6: Final answer
    x = 99,780.84

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.