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Finding the Fourth Proportional to 49,699.80, 68,574.47 and 36,278.37

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Solution

The fourth proportional to 49,699.80, 68,574.47 and 36,278.37 is: 50,055.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,699.80 : 68,574.47 = 36,278.37 : x
  2. Step 2: Convert to fraction form
    49,699.80/68,574.47 = 36,278.37/x
  3. Step 3: Cross multiply
    49,699.80x = 68,574.47 × 36,278.37
  4. Step 4: Simplify right side
    49,699.80x = 2,487,769,813.82
  5. Step 5: Solve for x
    x = 2,487,769,813.82/49,699.80
  6. Step 6: Final answer
    x = 50,055.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.