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Finding the Fourth Proportional to 60,039.92, 90,075.44 and 31,936.83

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Solution

The fourth proportional to 60,039.92, 90,075.44 and 31,936.83 is: 47,913.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,039.92 : 90,075.44 = 31,936.83 : x
  2. Step 2: Convert to fraction form
    60,039.92/90,075.44 = 31,936.83/x
  3. Step 3: Cross multiply
    60,039.92x = 90,075.44 × 31,936.83
  4. Step 4: Simplify right side
    60,039.92x = 2,876,723,854.77
  5. Step 5: Solve for x
    x = 2,876,723,854.77/60,039.92
  6. Step 6: Final answer
    x = 47,913.52

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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.