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Finding the Third Proportional to 63,316 and 91,720.50

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Solution

The third proportional to 63,316 and 91,720.50 is: 132,867.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,316 : 91,720.50 = 91,720.50 : x
  2. Step 2: Convert to fraction form
    63,316/91,720.50 = 91,720.50/x
  3. Step 3: Cross multiply
    63,316x = 91,720.50 × 91,720.50
  4. Step 4: Simplify right side
    63,316x = 8,412,650,120.25
  5. Step 5: Solve for x
    x = 8,412,650,120.25/63,316
  6. Step 6: Final answer
    x = 132,867.68

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.