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Finding the Fourth Proportional to 33,974, 46,863.80 and 21,376.88

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Solution

The fourth proportional to 33,974, 46,863.80 and 21,376.88 is: 29,487.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,974 : 46,863.80 = 21,376.88 : x
  2. Step 2: Convert to fraction form
    33,974/46,863.80 = 21,376.88/x
  3. Step 3: Cross multiply
    33,974x = 46,863.80 × 21,376.88
  4. Step 4: Simplify right side
    33,974x = 1,001,801,828.94
  5. Step 5: Solve for x
    x = 1,001,801,828.94/33,974
  6. Step 6: Final answer
    x = 29,487.31

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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.