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Finding the Third Proportional to 42,331 and 93,018

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Solution

The third proportional to 42,331 and 93,018 is: 204,397.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,331 : 93,018 = 93,018 : x
  2. Step 2: Convert to fraction form
    42,331/93,018 = 93,018/x
  3. Step 3: Cross multiply
    42,331x = 93,018 × 93,018
  4. Step 4: Simplify right side
    42,331x = 8,652,348,324
  5. Step 5: Solve for x
    x = 8,652,348,324/42,331
  6. Step 6: Final answer
    x = 204,397.45

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.