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Finding the Third Proportional to 41,917.50 and 64,881

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Solution

The third proportional to 41,917.50 and 64,881 is: 100,424.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,917.50 : 64,881 = 64,881 : x
  2. Step 2: Convert to fraction form
    41,917.50/64,881 = 64,881/x
  3. Step 3: Cross multiply
    41,917.50x = 64,881 × 64,881
  4. Step 4: Simplify right side
    41,917.50x = 4,209,544,161
  5. Step 5: Solve for x
    x = 4,209,544,161/41,917.50
  6. Step 6: Final answer
    x = 100,424.50

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.