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Finding the Third Proportional to 40,316.50 and 87,629

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Solution

The third proportional to 40,316.50 and 87,629 is: 190,463.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,316.50 : 87,629 = 87,629 : x
  2. Step 2: Convert to fraction form
    40,316.50/87,629 = 87,629/x
  3. Step 3: Cross multiply
    40,316.50x = 87,629 × 87,629
  4. Step 4: Simplify right side
    40,316.50x = 7,678,841,641
  5. Step 5: Solve for x
    x = 7,678,841,641/40,316.50
  6. Step 6: Final answer
    x = 190,463.99

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.