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Finding the Third Proportional to 46,989.75 and 71,973

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Solution

The third proportional to 46,989.75 and 71,973 is: 110,239.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,989.75 : 71,973 = 71,973 : x
  2. Step 2: Convert to fraction form
    46,989.75/71,973 = 71,973/x
  3. Step 3: Cross multiply
    46,989.75x = 71,973 × 71,973
  4. Step 4: Simplify right side
    46,989.75x = 5,180,112,729
  5. Step 5: Solve for x
    x = 5,180,112,729/46,989.75
  6. Step 6: Final answer
    x = 110,239.21

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.