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Finding the Third Proportional to 31,911 and 48,358.50

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Solution

The third proportional to 31,911 and 48,358.50 is: 73,283.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,911 : 48,358.50 = 48,358.50 : x
  2. Step 2: Convert to fraction form
    31,911/48,358.50 = 48,358.50/x
  3. Step 3: Cross multiply
    31,911x = 48,358.50 × 48,358.50
  4. Step 4: Simplify right side
    31,911x = 2,338,544,522.25
  5. Step 5: Solve for x
    x = 2,338,544,522.25/31,911
  6. Step 6: Final answer
    x = 73,283.34

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.