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Finding the Fourth Proportional to 29,580.20, 40,865.20 and 19,395.44

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Solution

The fourth proportional to 29,580.20, 40,865.20 and 19,395.44 is: 26,794.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,580.20 : 40,865.20 = 19,395.44 : x
  2. Step 2: Convert to fraction form
    29,580.20/40,865.20 = 19,395.44/x
  3. Step 3: Cross multiply
    29,580.20x = 40,865.20 × 19,395.44
  4. Step 4: Simplify right side
    29,580.20x = 792,598,534.69
  5. Step 5: Solve for x
    x = 792,598,534.69/29,580.20
  6. Step 6: Final answer
    x = 26,794.90

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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.