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Finding the Fourth Proportional to 45,975, 63,445.50 and 28,067.16

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Solution

The fourth proportional to 45,975, 63,445.50 and 28,067.16 is: 38,732.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,975 : 63,445.50 = 28,067.16 : x
  2. Step 2: Convert to fraction form
    45,975/63,445.50 = 28,067.16/x
  3. Step 3: Cross multiply
    45,975x = 63,445.50 × 28,067.16
  4. Step 4: Simplify right side
    45,975x = 1,780,734,999.78
  5. Step 5: Solve for x
    x = 1,780,734,999.78/45,975
  6. Step 6: Final answer
    x = 38,732.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.