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Finding the Third Proportional to 42,991 and 94,702

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Solution

The third proportional to 42,991 and 94,702 is: 208,612.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,991 : 94,702 = 94,702 : x
  2. Step 2: Convert to fraction form
    42,991/94,702 = 94,702/x
  3. Step 3: Cross multiply
    42,991x = 94,702 × 94,702
  4. Step 4: Simplify right side
    42,991x = 8,968,468,804
  5. Step 5: Solve for x
    x = 8,968,468,804/42,991
  6. Step 6: Final answer
    x = 208,612.71

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.