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Finding the Fourth Proportional to 61,321.75, 92,011.77 and 28,039.26

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Solution

The fourth proportional to 61,321.75, 92,011.77 and 28,039.26 is: 42,072.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,321.75 : 92,011.77 = 28,039.26 : x
  2. Step 2: Convert to fraction form
    61,321.75/92,011.77 = 28,039.26/x
  3. Step 3: Cross multiply
    61,321.75x = 92,011.77 × 28,039.26
  4. Step 4: Simplify right side
    61,321.75x = 2,579,941,942.09
  5. Step 5: Solve for x
    x = 2,579,941,942.09/61,321.75
  6. Step 6: Final answer
    x = 42,072.22

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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.