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Finding the Third Proportional to 21,765 and 32,701.50

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Solution

The third proportional to 21,765 and 32,701.50 is: 49,133.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,765 : 32,701.50 = 32,701.50 : x
  2. Step 2: Convert to fraction form
    21,765/32,701.50 = 32,701.50/x
  3. Step 3: Cross multiply
    21,765x = 32,701.50 × 32,701.50
  4. Step 4: Simplify right side
    21,765x = 1,069,388,102.25
  5. Step 5: Solve for x
    x = 1,069,388,102.25/21,765
  6. Step 6: Final answer
    x = 49,133.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.