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Finding the Fourth Proportional to 57,684.35, 79,486.18 and 42,553.01

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Solution

The fourth proportional to 57,684.35, 79,486.18 and 42,553.01 is: 58,635.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,684.35 : 79,486.18 = 42,553.01 : x
  2. Step 2: Convert to fraction form
    57,684.35/79,486.18 = 42,553.01/x
  3. Step 3: Cross multiply
    57,684.35x = 79,486.18 × 42,553.01
  4. Step 4: Simplify right side
    57,684.35x = 3,382,376,304.73
  5. Step 5: Solve for x
    x = 3,382,376,304.73/57,684.35
  6. Step 6: Final answer
    x = 58,635.94

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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.