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Finding the Fourth Proportional to 60,942.75, 91,425.60 and 27,665.16

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Solution

The fourth proportional to 60,942.75, 91,425.60 and 27,665.16 is: 41,502.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,942.75 : 91,425.60 = 27,665.16 : x
  2. Step 2: Convert to fraction form
    60,942.75/91,425.60 = 27,665.16/x
  3. Step 3: Cross multiply
    60,942.75x = 91,425.60 × 27,665.16
  4. Step 4: Simplify right side
    60,942.75x = 2,529,303,852.10
  5. Step 5: Solve for x
    x = 2,529,303,852.10/60,942.75
  6. Step 6: Final answer
    x = 41,502.95

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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.