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Finding the Fourth Proportional to 33,321.44, 45,980.88 and 18,417.44

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Solution

The fourth proportional to 33,321.44, 45,980.88 and 18,417.44 is: 25,414.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,321.44 : 45,980.88 = 18,417.44 : x
  2. Step 2: Convert to fraction form
    33,321.44/45,980.88 = 18,417.44/x
  3. Step 3: Cross multiply
    33,321.44x = 45,980.88 × 18,417.44
  4. Step 4: Simplify right side
    33,321.44x = 846,850,098.55
  5. Step 5: Solve for x
    x = 846,850,098.55/33,321.44
  6. Step 6: Final answer
    x = 25,414.57

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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.