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Finding the Fourth Proportional to 26,221.50, 39,338.91 and 7,753.50

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Solution

The fourth proportional to 26,221.50, 39,338.91 and 7,753.50 is: 11,632.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,221.50 : 39,338.91 = 7,753.50 : x
  2. Step 2: Convert to fraction form
    26,221.50/39,338.91 = 7,753.50/x
  3. Step 3: Cross multiply
    26,221.50x = 39,338.91 × 7,753.50
  4. Step 4: Simplify right side
    26,221.50x = 305,014,238.69
  5. Step 5: Solve for x
    x = 305,014,238.69/26,221.50
  6. Step 6: Final answer
    x = 11,632.22

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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.