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Finding the Fourth Proportional to 60,704.52, 91,065.24 and 21,252.66

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Solution

The fourth proportional to 60,704.52, 91,065.24 and 21,252.66 is: 31,881.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,704.52 : 91,065.24 = 21,252.66 : x
  2. Step 2: Convert to fraction form
    60,704.52/91,065.24 = 21,252.66/x
  3. Step 3: Cross multiply
    60,704.52x = 91,065.24 × 21,252.66
  4. Step 4: Simplify right side
    60,704.52x = 1,935,378,583.54
  5. Step 5: Solve for x
    x = 1,935,378,583.54/60,704.52
  6. Step 6: Final answer
    x = 31,881.95

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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.