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Finding the Third Proportional to 19,968 and 29,688

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Solution

The third proportional to 19,968 and 29,688 is: 44,139.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,968 : 29,688 = 29,688 : x
  2. Step 2: Convert to fraction form
    19,968/29,688 = 29,688/x
  3. Step 3: Cross multiply
    19,968x = 29,688 × 29,688
  4. Step 4: Simplify right side
    19,968x = 881,377,344
  5. Step 5: Solve for x
    x = 881,377,344/19,968
  6. Step 6: Final answer
    x = 44,139.49

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.