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Finding the Fourth Proportional to 33,888.97, 50,813.79 and 12,830.64

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Solution

The fourth proportional to 33,888.97, 50,813.79 and 12,830.64 is: 19,238.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,888.97 : 50,813.79 = 12,830.64 : x
  2. Step 2: Convert to fraction form
    33,888.97/50,813.79 = 12,830.64/x
  3. Step 3: Cross multiply
    33,888.97x = 50,813.79 × 12,830.64
  4. Step 4: Simplify right side
    33,888.97x = 651,973,446.53
  5. Step 5: Solve for x
    x = 651,973,446.53/33,888.97
  6. Step 6: Final answer
    x = 19,238.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.