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Finding the Fourth Proportional to 55,574.52, 76,692.87 and 30,424.02

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Solution

The fourth proportional to 55,574.52, 76,692.87 and 30,424.02 is: 41,985.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,574.52 : 76,692.87 = 30,424.02 : x
  2. Step 2: Convert to fraction form
    55,574.52/76,692.87 = 30,424.02/x
  3. Step 3: Cross multiply
    55,574.52x = 76,692.87 × 30,424.02
  4. Step 4: Simplify right side
    55,574.52x = 2,333,305,410.74
  5. Step 5: Solve for x
    x = 2,333,305,410.74/55,574.52
  6. Step 6: Final answer
    x = 41,985.17

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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.