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Finding the Third Proportional to 18,805.50 and 29,106

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Solution

The third proportional to 18,805.50 and 29,106 is: 45,048.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,805.50 : 29,106 = 29,106 : x
  2. Step 2: Convert to fraction form
    18,805.50/29,106 = 29,106/x
  3. Step 3: Cross multiply
    18,805.50x = 29,106 × 29,106
  4. Step 4: Simplify right side
    18,805.50x = 847,159,236
  5. Step 5: Solve for x
    x = 847,159,236/18,805.50
  6. Step 6: Final answer
    x = 45,048.48

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.