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Finding the Fourth Proportional to 33,272.99, 45,915.99 and 18,165.07

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Solution

The fourth proportional to 33,272.99, 45,915.99 and 18,165.07 is: 25,067.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,272.99 : 45,915.99 = 18,165.07 : x
  2. Step 2: Convert to fraction form
    33,272.99/45,915.99 = 18,165.07/x
  3. Step 3: Cross multiply
    33,272.99x = 45,915.99 × 18,165.07
  4. Step 4: Simplify right side
    33,272.99x = 834,067,172.47
  5. Step 5: Solve for x
    x = 834,067,172.47/33,272.99
  6. Step 6: Final answer
    x = 25,067.39

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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.