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Finding the Fourth Proportional to 60,676.62, 91,055.93 and 21,234.07

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Solution

The fourth proportional to 60,676.62, 91,055.93 and 21,234.07 is: 31,865.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,676.62 : 91,055.93 = 21,234.07 : x
  2. Step 2: Convert to fraction form
    60,676.62/91,055.93 = 21,234.07/x
  3. Step 3: Cross multiply
    60,676.62x = 91,055.93 × 21,234.07
  4. Step 4: Simplify right side
    60,676.62x = 1,933,487,991.54
  5. Step 5: Solve for x
    x = 1,933,487,991.54/60,676.62
  6. Step 6: Final answer
    x = 31,865.45

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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.