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Finding the Fourth Proportional to 33,119.56, 45,702.56 and 18,779.68

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Solution

The fourth proportional to 33,119.56, 45,702.56 and 18,779.68 is: 25,914.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,119.56 : 45,702.56 = 18,779.68 : x
  2. Step 2: Convert to fraction form
    33,119.56/45,702.56 = 18,779.68/x
  3. Step 3: Cross multiply
    33,119.56x = 45,702.56 × 18,779.68
  4. Step 4: Simplify right side
    33,119.56x = 858,279,451.98
  5. Step 5: Solve for x
    x = 858,279,451.98/33,119.56
  6. Step 6: Final answer
    x = 25,914.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.