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Finding the Third Proportional to 64,678.50 and 96,619.50

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Solution

The third proportional to 64,678.50 and 96,619.50 is: 144,334.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,678.50 : 96,619.50 = 96,619.50 : x
  2. Step 2: Convert to fraction form
    64,678.50/96,619.50 = 96,619.50/x
  3. Step 3: Cross multiply
    64,678.50x = 96,619.50 × 96,619.50
  4. Step 4: Simplify right side
    64,678.50x = 9,335,327,780.25
  5. Step 5: Solve for x
    x = 9,335,327,780.25/64,678.50
  6. Step 6: Final answer
    x = 144,334.33

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.