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Finding the Fourth Proportional to 60,993.64, 91,497.84 and 21,542.68

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Solution

The fourth proportional to 60,993.64, 91,497.84 and 21,542.68 is: 32,316.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,993.64 : 91,497.84 = 21,542.68 : x
  2. Step 2: Convert to fraction form
    60,993.64/91,497.84 = 21,542.68/x
  3. Step 3: Cross multiply
    60,993.64x = 91,497.84 × 21,542.68
  4. Step 4: Simplify right side
    60,993.64x = 1,971,108,687.81
  5. Step 5: Solve for x
    x = 1,971,108,687.81/60,993.64
  6. Step 6: Final answer
    x = 32,316.63

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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.