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Finding the Third Proportional to 192.50 and 417.94

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Solution

The third proportional to 192.50 and 417.94 is: 907.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.50 : 417.94 = 417.94 : x
  2. Step 2: Convert to fraction form
    192.50/417.94 = 417.94/x
  3. Step 3: Cross multiply
    192.50x = 417.94 × 417.94
  4. Step 4: Simplify right side
    192.50x = 174,671.75
  5. Step 5: Solve for x
    x = 174,671.75/192.50
  6. Step 6: Final answer
    x = 907.39

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.