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Finding the Fourth Proportional to 38,924.80, 58,300.80 and 15,539.20

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Solution

The fourth proportional to 38,924.80, 58,300.80 and 15,539.20 is: 23,274.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,924.80 : 58,300.80 = 15,539.20 : x
  2. Step 2: Convert to fraction form
    38,924.80/58,300.80 = 15,539.20/x
  3. Step 3: Cross multiply
    38,924.80x = 58,300.80 × 15,539.20
  4. Step 4: Simplify right side
    38,924.80x = 905,947,791.36
  5. Step 5: Solve for x
    x = 905,947,791.36/38,924.80
  6. Step 6: Final answer
    x = 23,274.31

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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.