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Finding the Third Proportional to 43,239.50 and 91,424

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Solution

The third proportional to 43,239.50 and 91,424 is: 193,303.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,239.50 : 91,424 = 91,424 : x
  2. Step 2: Convert to fraction form
    43,239.50/91,424 = 91,424/x
  3. Step 3: Cross multiply
    43,239.50x = 91,424 × 91,424
  4. Step 4: Simplify right side
    43,239.50x = 8,358,347,776
  5. Step 5: Solve for x
    x = 8,358,347,776/43,239.50
  6. Step 6: Final answer
    x = 193,303.53

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.