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Finding the Third Proportional to 64,318 and 99,394

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Solution

The third proportional to 64,318 and 99,394 is: 153,598.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,318 : 99,394 = 99,394 : x
  2. Step 2: Convert to fraction form
    64,318/99,394 = 99,394/x
  3. Step 3: Cross multiply
    64,318x = 99,394 × 99,394
  4. Step 4: Simplify right side
    64,318x = 9,879,167,236
  5. Step 5: Solve for x
    x = 9,879,167,236/64,318
  6. Step 6: Final answer
    x = 153,598.79

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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.