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Finding the Third Proportional to 47,109 and 66,022.50

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Solution

The third proportional to 47,109 and 66,022.50 is: 92,529.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,109 : 66,022.50 = 66,022.50 : x
  2. Step 2: Convert to fraction form
    47,109/66,022.50 = 66,022.50/x
  3. Step 3: Cross multiply
    47,109x = 66,022.50 × 66,022.50
  4. Step 4: Simplify right side
    47,109x = 4,358,970,506.25
  5. Step 5: Solve for x
    x = 4,358,970,506.25/47,109
  6. Step 6: Final answer
    x = 92,529.46

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.