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Finding the Fourth Proportional to 38,260.39, 57,393.89 and 10,558.39

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Solution

The fourth proportional to 38,260.39, 57,393.89 and 10,558.39 is: 15,838.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,260.39 : 57,393.89 = 10,558.39 : x
  2. Step 2: Convert to fraction form
    38,260.39/57,393.89 = 10,558.39/x
  3. Step 3: Cross multiply
    38,260.39x = 57,393.89 × 10,558.39
  4. Step 4: Simplify right side
    38,260.39x = 605,987,021.45
  5. Step 5: Solve for x
    x = 605,987,021.45/38,260.39
  6. Step 6: Final answer
    x = 15,838.50

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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.