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Finding the Fourth Proportional to 32,067.72, 44,255.70 and 20,889.72

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Solution

The fourth proportional to 32,067.72, 44,255.70 and 20,889.72 is: 28,829.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,067.72 : 44,255.70 = 20,889.72 : x
  2. Step 2: Convert to fraction form
    32,067.72/44,255.70 = 20,889.72/x
  3. Step 3: Cross multiply
    32,067.72x = 44,255.70 × 20,889.72
  4. Step 4: Simplify right side
    32,067.72x = 924,489,181.40
  5. Step 5: Solve for x
    x = 924,489,181.40/32,067.72
  6. Step 6: Final answer
    x = 28,829.28

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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.