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Finding the Third Proportional to 64,465 and 99,613

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Solution

The third proportional to 64,465 and 99,613 is: 153,924.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,465 : 99,613 = 99,613 : x
  2. Step 2: Convert to fraction form
    64,465/99,613 = 99,613/x
  3. Step 3: Cross multiply
    64,465x = 99,613 × 99,613
  4. Step 4: Simplify right side
    64,465x = 9,922,749,769
  5. Step 5: Solve for x
    x = 9,922,749,769/64,465
  6. Step 6: Final answer
    x = 153,924.61

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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.