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Finding the Third Proportional to 72,150.75 and 84,624.75

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Solution

The third proportional to 72,150.75 and 84,624.75 is: 99,255.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,150.75 : 84,624.75 = 84,624.75 : x
  2. Step 2: Convert to fraction form
    72,150.75/84,624.75 = 84,624.75/x
  3. Step 3: Cross multiply
    72,150.75x = 84,624.75 × 84,624.75
  4. Step 4: Simplify right side
    72,150.75x = 7,161,348,312.56
  5. Step 5: Solve for x
    x = 7,161,348,312.56/72,150.75
  6. Step 6: Final answer
    x = 99,255.36

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Why These Related Problems?

These problems maintain the same ratio (1.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.