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Finding the Third Proportional to 64,604 and 99,788

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Solution

The third proportional to 64,604 and 99,788 is: 154,133.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,604 : 99,788 = 99,788 : x
  2. Step 2: Convert to fraction form
    64,604/99,788 = 99,788/x
  3. Step 3: Cross multiply
    64,604x = 99,788 × 99,788
  4. Step 4: Simplify right side
    64,604x = 9,957,644,944
  5. Step 5: Solve for x
    x = 9,957,644,944/64,604
  6. Step 6: Final answer
    x = 154,133.57

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.