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Finding the Third Proportional to 29,443.50 and 45,621

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Solution

The third proportional to 29,443.50 and 45,621 is: 70,687.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,443.50 : 45,621 = 45,621 : x
  2. Step 2: Convert to fraction form
    29,443.50/45,621 = 45,621/x
  3. Step 3: Cross multiply
    29,443.50x = 45,621 × 45,621
  4. Step 4: Simplify right side
    29,443.50x = 2,081,275,641
  5. Step 5: Solve for x
    x = 2,081,275,641/29,443.50
  6. Step 6: Final answer
    x = 70,687.10

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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.