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Finding the Fourth Proportional to 60,392.45, 90,591.83 and 18,271.47

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Solution

The fourth proportional to 60,392.45, 90,591.83 and 18,271.47 is: 27,408.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,392.45 : 90,591.83 = 18,271.47 : x
  2. Step 2: Convert to fraction form
    60,392.45/90,591.83 = 18,271.47/x
  3. Step 3: Cross multiply
    60,392.45x = 90,591.83 × 18,271.47
  4. Step 4: Simplify right side
    60,392.45x = 1,655,245,812.73
  5. Step 5: Solve for x
    x = 1,655,245,812.73/60,392.45
  6. Step 6: Final answer
    x = 27,408.16

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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.