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Finding the Third Proportional to 19,518.75 and 29,412

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Solution

The third proportional to 19,518.75 and 29,412 is: 44,319.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,518.75 : 29,412 = 29,412 : x
  2. Step 2: Convert to fraction form
    19,518.75/29,412 = 29,412/x
  3. Step 3: Cross multiply
    19,518.75x = 29,412 × 29,412
  4. Step 4: Simplify right side
    19,518.75x = 865,065,744
  5. Step 5: Solve for x
    x = 865,065,744/19,518.75
  6. Step 6: Final answer
    x = 44,319.73

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.