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Finding the Third Proportional to 18,248.58 and 39,226.64

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Solution

The third proportional to 18,248.58 and 39,226.64 is: 84,320.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,248.58 : 39,226.64 = 39,226.64 : x
  2. Step 2: Convert to fraction form
    18,248.58/39,226.64 = 39,226.64/x
  3. Step 3: Cross multiply
    18,248.58x = 39,226.64 × 39,226.64
  4. Step 4: Simplify right side
    18,248.58x = 1,538,729,507.11
  5. Step 5: Solve for x
    x = 1,538,729,507.11/18,248.58
  6. Step 6: Final answer
    x = 84,320.50

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.