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Finding the Third Proportional to 18,697.50 and 22,261.50

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Solution

The third proportional to 18,697.50 and 22,261.50 is: 26,504.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,697.50 : 22,261.50 = 22,261.50 : x
  2. Step 2: Convert to fraction form
    18,697.50/22,261.50 = 22,261.50/x
  3. Step 3: Cross multiply
    18,697.50x = 22,261.50 × 22,261.50
  4. Step 4: Simplify right side
    18,697.50x = 495,574,382.25
  5. Step 5: Solve for x
    x = 495,574,382.25/18,697.50
  6. Step 6: Final answer
    x = 26,504.85

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Why These Related Problems?

These problems maintain the same ratio (1.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.