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Finding the Third Proportional to 19,444.50 and 22,320

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Solution

The third proportional to 19,444.50 and 22,320 is: 25,620.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,444.50 : 22,320 = 22,320 : x
  2. Step 2: Convert to fraction form
    19,444.50/22,320 = 22,320/x
  3. Step 3: Cross multiply
    19,444.50x = 22,320 × 22,320
  4. Step 4: Simplify right side
    19,444.50x = 498,182,400
  5. Step 5: Solve for x
    x = 498,182,400/19,444.50
  6. Step 6: Final answer
    x = 25,620.74

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.