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Finding the Fourth Proportional to 38,249.50, 52,789.26 and 21,482.50

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Solution

The fourth proportional to 38,249.50, 52,789.26 and 21,482.50 is: 29,648.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,249.50 : 52,789.26 = 21,482.50 : x
  2. Step 2: Convert to fraction form
    38,249.50/52,789.26 = 21,482.50/x
  3. Step 3: Cross multiply
    38,249.50x = 52,789.26 × 21,482.50
  4. Step 4: Simplify right side
    38,249.50x = 1,134,045,277.95
  5. Step 5: Solve for x
    x = 1,134,045,277.95/38,249.50
  6. Step 6: Final answer
    x = 29,648.63

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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.