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Finding the Fourth Proportional to 33,118.48, 45,702.60 and 18,214.48

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Solution

The fourth proportional to 33,118.48, 45,702.60 and 18,214.48 is: 25,135.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,118.48 : 45,702.60 = 18,214.48 : x
  2. Step 2: Convert to fraction form
    33,118.48/45,702.60 = 18,214.48/x
  3. Step 3: Cross multiply
    33,118.48x = 45,702.60 × 18,214.48
  4. Step 4: Simplify right side
    33,118.48x = 832,449,093.65
  5. Step 5: Solve for x
    x = 832,449,093.65/33,118.48
  6. Step 6: Final answer
    x = 25,135.49

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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.