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Finding the Third Proportional to 63,331.88 and 135,513

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Solution

The third proportional to 63,331.88 and 135,513 is: 289,960.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,331.88 : 135,513 = 135,513 : x
  2. Step 2: Convert to fraction form
    63,331.88/135,513 = 135,513/x
  3. Step 3: Cross multiply
    63,331.88x = 135,513 × 135,513
  4. Step 4: Simplify right side
    63,331.88x = 18,363,773,169
  5. Step 5: Solve for x
    x = 18,363,773,169/63,331.88
  6. Step 6: Final answer
    x = 289,960.99

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.