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Finding the Third Proportional to 21,008 and 44,440

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Solution

The third proportional to 21,008 and 44,440 is: 94,007.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,008 : 44,440 = 44,440 : x
  2. Step 2: Convert to fraction form
    21,008/44,440 = 44,440/x
  3. Step 3: Cross multiply
    21,008x = 44,440 × 44,440
  4. Step 4: Simplify right side
    21,008x = 1,974,913,600
  5. Step 5: Solve for x
    x = 1,974,913,600/21,008
  6. Step 6: Final answer
    x = 94,007.69

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.