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Finding the Third Proportional to 64,890 and 98,553

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Solution

The third proportional to 64,890 and 98,553 is: 149,679.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,890 : 98,553 = 98,553 : x
  2. Step 2: Convert to fraction form
    64,890/98,553 = 98,553/x
  3. Step 3: Cross multiply
    64,890x = 98,553 × 98,553
  4. Step 4: Simplify right side
    64,890x = 9,712,693,809
  5. Step 5: Solve for x
    x = 9,712,693,809/64,890
  6. Step 6: Final answer
    x = 149,679.36

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.