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Finding the Fourth Proportional to 23,642.28, 35,468.28 and 9,791.28

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Solution

The fourth proportional to 23,642.28, 35,468.28 and 9,791.28 is: 14,688.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,642.28 : 35,468.28 = 9,791.28 : x
  2. Step 2: Convert to fraction form
    23,642.28/35,468.28 = 9,791.28/x
  3. Step 3: Cross multiply
    23,642.28x = 35,468.28 × 9,791.28
  4. Step 4: Simplify right side
    23,642.28x = 347,279,860.60
  5. Step 5: Solve for x
    x = 347,279,860.60/23,642.28
  6. Step 6: Final answer
    x = 14,688.93

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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.