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Finding the Fourth Proportional to 33,423.90, 50,135.91 and 13,698.91

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Solution

The fourth proportional to 33,423.90, 50,135.91 and 13,698.91 is: 20,548.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,423.90 : 50,135.91 = 13,698.91 : x
  2. Step 2: Convert to fraction form
    33,423.90/50,135.91 = 13,698.91/x
  3. Step 3: Cross multiply
    33,423.90x = 50,135.91 × 13,698.91
  4. Step 4: Simplify right side
    33,423.90x = 686,807,318.86
  5. Step 5: Solve for x
    x = 686,807,318.86/33,423.90
  6. Step 6: Final answer
    x = 20,548.39

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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.