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Finding the Fourth Proportional to 33,971.70, 50,955.15 and 11,779.70

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Solution

The fourth proportional to 33,971.70, 50,955.15 and 11,779.70 is: 17,668.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,971.70 : 50,955.15 = 11,779.70 : x
  2. Step 2: Convert to fraction form
    33,971.70/50,955.15 = 11,779.70/x
  3. Step 3: Cross multiply
    33,971.70x = 50,955.15 × 11,779.70
  4. Step 4: Simplify right side
    33,971.70x = 600,236,380.46
  5. Step 5: Solve for x
    x = 600,236,380.46/33,971.70
  6. Step 6: Final answer
    x = 17,668.72

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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.