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Finding the Fourth Proportional to 60,997.23, 91,473.23 and 21,005.06

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Solution

The fourth proportional to 60,997.23, 91,473.23 and 21,005.06 is: 31,499.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,997.23 : 91,473.23 = 21,005.06 : x
  2. Step 2: Convert to fraction form
    60,997.23/91,473.23 = 21,005.06/x
  3. Step 3: Cross multiply
    60,997.23x = 91,473.23 × 21,005.06
  4. Step 4: Simplify right side
    60,997.23x = 1,921,400,122.15
  5. Step 5: Solve for x
    x = 1,921,400,122.15/60,997.23
  6. Step 6: Final answer
    x = 31,499.79

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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.