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Finding the Fourth Proportional to 40,610.43, 60,926.04 and 15,643.77

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Solution

The fourth proportional to 40,610.43, 60,926.04 and 15,643.77 is: 23,469.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,610.43 : 60,926.04 = 15,643.77 : x
  2. Step 2: Convert to fraction form
    40,610.43/60,926.04 = 15,643.77/x
  3. Step 3: Cross multiply
    40,610.43x = 60,926.04 × 15,643.77
  4. Step 4: Simplify right side
    40,610.43x = 953,112,728.30
  5. Step 5: Solve for x
    x = 953,112,728.30/40,610.43
  6. Step 6: Final answer
    x = 23,469.65

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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.