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Finding the Fourth Proportional to 40,393.67, 55,745.47 and 22,488.28

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Solution

The fourth proportional to 40,393.67, 55,745.47 and 22,488.28 is: 31,035.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,393.67 : 55,745.47 = 22,488.28 : x
  2. Step 2: Convert to fraction form
    40,393.67/55,745.47 = 22,488.28/x
  3. Step 3: Cross multiply
    40,393.67x = 55,745.47 × 22,488.28
  4. Step 4: Simplify right side
    40,393.67x = 1,253,619,626.84
  5. Step 5: Solve for x
    x = 1,253,619,626.84/40,393.67
  6. Step 6: Final answer
    x = 31,035.06

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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.