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Finding the Third Proportional to 21,120 and 44,928

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Solution

The third proportional to 21,120 and 44,928 is: 95,574.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,120 : 44,928 = 44,928 : x
  2. Step 2: Convert to fraction form
    21,120/44,928 = 44,928/x
  3. Step 3: Cross multiply
    21,120x = 44,928 × 44,928
  4. Step 4: Simplify right side
    21,120x = 2,018,525,184
  5. Step 5: Solve for x
    x = 2,018,525,184/21,120
  6. Step 6: Final answer
    x = 95,574.11

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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.