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Finding the Third Proportional to 18,987.75 and 29,092.50

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Solution

The third proportional to 18,987.75 and 29,092.50 is: 44,574.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,987.75 : 29,092.50 = 29,092.50 : x
  2. Step 2: Convert to fraction form
    18,987.75/29,092.50 = 29,092.50/x
  3. Step 3: Cross multiply
    18,987.75x = 29,092.50 × 29,092.50
  4. Step 4: Simplify right side
    18,987.75x = 846,373,556.25
  5. Step 5: Solve for x
    x = 846,373,556.25/18,987.75
  6. Step 6: Final answer
    x = 44,574.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.