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Finding the Fourth Proportional to 57,714, 79,651.44 and 33,860.76

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Solution

The fourth proportional to 57,714, 79,651.44 and 33,860.76 is: 46,731.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,714 : 79,651.44 = 33,860.76 : x
  2. Step 2: Convert to fraction form
    57,714/79,651.44 = 33,860.76/x
  3. Step 3: Cross multiply
    57,714x = 79,651.44 × 33,860.76
  4. Step 4: Simplify right side
    57,714x = 2,697,058,293.49
  5. Step 5: Solve for x
    x = 2,697,058,293.49/57,714
  6. Step 6: Final answer
    x = 46,731.44

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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.