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Finding the Third Proportional to 15,723 and 22,027.50

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Solution

The third proportional to 15,723 and 22,027.50 is: 30,859.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,723 : 22,027.50 = 22,027.50 : x
  2. Step 2: Convert to fraction form
    15,723/22,027.50 = 22,027.50/x
  3. Step 3: Cross multiply
    15,723x = 22,027.50 × 22,027.50
  4. Step 4: Simplify right side
    15,723x = 485,210,756.25
  5. Step 5: Solve for x
    x = 485,210,756.25/15,723
  6. Step 6: Final answer
    x = 30,859.93

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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.