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Finding the Fourth Proportional to 61,465.05, 92,193.93 and 21,481.22

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Solution

The fourth proportional to 61,465.05, 92,193.93 and 21,481.22 is: 32,220.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,465.05 : 92,193.93 = 21,481.22 : x
  2. Step 2: Convert to fraction form
    61,465.05/92,193.93 = 21,481.22/x
  3. Step 3: Cross multiply
    61,465.05x = 92,193.93 × 21,481.22
  4. Step 4: Simplify right side
    61,465.05x = 1,980,438,323.48
  5. Step 5: Solve for x
    x = 1,980,438,323.48/61,465.05
  6. Step 6: Final answer
    x = 32,220.56

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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.