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Finding the Fourth Proportional to 60,713.63, 91,015.32 and 21,249.22

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Solution

The fourth proportional to 60,713.63, 91,015.32 and 21,249.22 is: 31,854.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,713.63 : 91,015.32 = 21,249.22 : x
  2. Step 2: Convert to fraction form
    60,713.63/91,015.32 = 21,249.22/x
  3. Step 3: Cross multiply
    60,713.63x = 91,015.32 × 21,249.22
  4. Step 4: Simplify right side
    60,713.63x = 1,934,003,996.73
  5. Step 5: Solve for x
    x = 1,934,003,996.73/60,713.63
  6. Step 6: Final answer
    x = 31,854.53

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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.