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Finding the Fourth Proportional to 26,261.86, 39,392.72 and 7,793.86

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Solution

The fourth proportional to 26,261.86, 39,392.72 and 7,793.86 is: 11,690.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,261.86 : 39,392.72 = 7,793.86 : x
  2. Step 2: Convert to fraction form
    26,261.86/39,392.72 = 7,793.86/x
  3. Step 3: Cross multiply
    26,261.86x = 39,392.72 × 7,793.86
  4. Step 4: Simplify right side
    26,261.86x = 307,021,344.70
  5. Step 5: Solve for x
    x = 307,021,344.70/26,261.86
  6. Step 6: Final answer
    x = 11,690.77

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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.