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Finding the Third Proportional to 19,740 and 43,044

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Solution

The third proportional to 19,740 and 43,044 is: 93,859.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,740 : 43,044 = 43,044 : x
  2. Step 2: Convert to fraction form
    19,740/43,044 = 43,044/x
  3. Step 3: Cross multiply
    19,740x = 43,044 × 43,044
  4. Step 4: Simplify right side
    19,740x = 1,852,785,936
  5. Step 5: Solve for x
    x = 1,852,785,936/19,740
  6. Step 6: Final answer
    x = 93,859.47

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.