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Finding the Third Proportional to 22,070 and 31,440

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Solution

The third proportional to 22,070 and 31,440 is: 44,788.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,070 : 31,440 = 31,440 : x
  2. Step 2: Convert to fraction form
    22,070/31,440 = 31,440/x
  3. Step 3: Cross multiply
    22,070x = 31,440 × 31,440
  4. Step 4: Simplify right side
    22,070x = 988,473,600
  5. Step 5: Solve for x
    x = 988,473,600/22,070
  6. Step 6: Final answer
    x = 44,788.11

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.