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Finding the Fourth Proportional to 33,428.78, 46,133.79 and 18,524.78

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Solution

The fourth proportional to 33,428.78, 46,133.79 and 18,524.78 is: 25,565.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,428.78 : 46,133.79 = 18,524.78 : x
  2. Step 2: Convert to fraction form
    33,428.78/46,133.79 = 18,524.78/x
  3. Step 3: Cross multiply
    33,428.78x = 46,133.79 × 18,524.78
  4. Step 4: Simplify right side
    33,428.78x = 854,618,310.32
  5. Step 5: Solve for x
    x = 854,618,310.32/33,428.78
  6. Step 6: Final answer
    x = 25,565.35

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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.