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Finding the Fourth Proportional to 23,361.66, 32,067.59 and 20,649.78

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Solution

The fourth proportional to 23,361.66, 32,067.59 and 20,649.78 is: 28,345.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,361.66 : 32,067.59 = 20,649.78 : x
  2. Step 2: Convert to fraction form
    23,361.66/32,067.59 = 20,649.78/x
  3. Step 3: Cross multiply
    23,361.66x = 32,067.59 × 20,649.78
  4. Step 4: Simplify right side
    23,361.66x = 662,188,575.38
  5. Step 5: Solve for x
    x = 662,188,575.38/23,361.66
  6. Step 6: Final answer
    x = 28,345.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.