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Finding the Third Proportional to 19,422 and 36,130.50

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Solution

The third proportional to 19,422 and 36,130.50 is: 67,213.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,422 : 36,130.50 = 36,130.50 : x
  2. Step 2: Convert to fraction form
    19,422/36,130.50 = 36,130.50/x
  3. Step 3: Cross multiply
    19,422x = 36,130.50 × 36,130.50
  4. Step 4: Simplify right side
    19,422x = 1,305,413,030.25
  5. Step 5: Solve for x
    x = 1,305,413,030.25/19,422
  6. Step 6: Final answer
    x = 67,213.11

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Why These Related Problems?

These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.