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Finding the Third Proportional to 64,464 and 99,612

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Solution

The third proportional to 64,464 and 99,612 is: 153,923.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,464 : 99,612 = 99,612 : x
  2. Step 2: Convert to fraction form
    64,464/99,612 = 99,612/x
  3. Step 3: Cross multiply
    64,464x = 99,612 × 99,612
  4. Step 4: Simplify right side
    64,464x = 9,922,550,544
  5. Step 5: Solve for x
    x = 9,922,550,544/64,464
  6. Step 6: Final answer
    x = 153,923.90

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.