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Finding the Fourth Proportional to 40,369.78, 55,709.53 and 22,464.73

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Solution

The fourth proportional to 40,369.78, 55,709.53 and 22,464.73 is: 31,000.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,369.78 : 55,709.53 = 22,464.73 : x
  2. Step 2: Convert to fraction form
    40,369.78/55,709.53 = 22,464.73/x
  3. Step 3: Cross multiply
    40,369.78x = 55,709.53 × 22,464.73
  4. Step 4: Simplify right side
    40,369.78x = 1,251,499,549.88
  5. Step 5: Solve for x
    x = 1,251,499,549.88/40,369.78
  6. Step 6: Final answer
    x = 31,000.90

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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.