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Finding the Fourth Proportional to 38,891.94, 58,337.91 and 11,189.94

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Solution

The fourth proportional to 38,891.94, 58,337.91 and 11,189.94 is: 16,784.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,891.94 : 58,337.91 = 11,189.94 : x
  2. Step 2: Convert to fraction form
    38,891.94/58,337.91 = 11,189.94/x
  3. Step 3: Cross multiply
    38,891.94x = 58,337.91 × 11,189.94
  4. Step 4: Simplify right side
    38,891.94x = 652,797,524.82
  5. Step 5: Solve for x
    x = 652,797,524.82/38,891.94
  6. Step 6: Final answer
    x = 16,784.91

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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.