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Finding the Fourth Proportional to 60,971.91, 91,395.09 and 34,620.99

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Solution

The fourth proportional to 60,971.91, 91,395.09 and 34,620.99 is: 51,895.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,971.91 : 91,395.09 = 34,620.99 : x
  2. Step 2: Convert to fraction form
    60,971.91/91,395.09 = 34,620.99/x
  3. Step 3: Cross multiply
    60,971.91x = 91,395.09 × 34,620.99
  4. Step 4: Simplify right side
    60,971.91x = 3,164,188,496.94
  5. Step 5: Solve for x
    x = 3,164,188,496.94/60,971.91
  6. Step 6: Final answer
    x = 51,895.84

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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.