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Finding the Fourth Proportional to 52,863.76, 72,933.20 and 30,186.48

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Solution

The fourth proportional to 52,863.76, 72,933.20 and 30,186.48 is: 41,646.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,863.76 : 72,933.20 = 30,186.48 : x
  2. Step 2: Convert to fraction form
    52,863.76/72,933.20 = 30,186.48/x
  3. Step 3: Cross multiply
    52,863.76x = 72,933.20 × 30,186.48
  4. Step 4: Simplify right side
    52,863.76x = 2,201,596,583.14
  5. Step 5: Solve for x
    x = 2,201,596,583.14/52,863.76
  6. Step 6: Final answer
    x = 41,646.61

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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.