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Finding the Third Proportional to 18,111 and 26,624.50

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Solution

The third proportional to 18,111 and 26,624.50 is: 39,139.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,111 : 26,624.50 = 26,624.50 : x
  2. Step 2: Convert to fraction form
    18,111/26,624.50 = 26,624.50/x
  3. Step 3: Cross multiply
    18,111x = 26,624.50 × 26,624.50
  4. Step 4: Simplify right side
    18,111x = 708,864,000.25
  5. Step 5: Solve for x
    x = 708,864,000.25/18,111
  6. Step 6: Final answer
    x = 39,139.97

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.