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Finding the Fourth Proportional to 33,854.90, 50,787.07 and 14,128.94

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Solution

The fourth proportional to 33,854.90, 50,787.07 and 14,128.94 is: 21,195.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,854.90 : 50,787.07 = 14,128.94 : x
  2. Step 2: Convert to fraction form
    33,854.90/50,787.07 = 14,128.94/x
  3. Step 3: Cross multiply
    33,854.90x = 50,787.07 × 14,128.94
  4. Step 4: Simplify right side
    33,854.90x = 717,567,464.81
  5. Step 5: Solve for x
    x = 717,567,464.81/33,854.90
  6. Step 6: Final answer
    x = 21,195.38

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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.