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Finding the Third Proportional to 18,848.95 and 39,248.30

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Solution

The third proportional to 18,848.95 and 39,248.30 is: 81,724.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,848.95 : 39,248.30 = 39,248.30 : x
  2. Step 2: Convert to fraction form
    18,848.95/39,248.30 = 39,248.30/x
  3. Step 3: Cross multiply
    18,848.95x = 39,248.30 × 39,248.30
  4. Step 4: Simplify right side
    18,848.95x = 1,540,428,807.59
  5. Step 5: Solve for x
    x = 1,540,428,807.59/18,848.95
  6. Step 6: Final answer
    x = 81,724.90

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.