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Finding the Fourth Proportional to 33,378.78, 46,062.81 and 18,474.78

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Solution

The fourth proportional to 33,378.78, 46,062.81 and 18,474.78 is: 25,495.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,378.78 : 46,062.81 = 18,474.78 : x
  2. Step 2: Convert to fraction form
    33,378.78/46,062.81 = 18,474.78/x
  3. Step 3: Cross multiply
    33,378.78x = 46,062.81 × 18,474.78
  4. Step 4: Simplify right side
    33,378.78x = 851,000,280.93
  5. Step 5: Solve for x
    x = 851,000,280.93/33,378.78
  6. Step 6: Final answer
    x = 25,495.25

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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.