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Finding the Fourth Proportional to 66,393.88, 99,620.21 and 34,796.41

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Solution

The fourth proportional to 66,393.88, 99,620.21 and 34,796.41 is: 52,210.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,393.88 : 99,620.21 = 34,796.41 : x
  2. Step 2: Convert to fraction form
    66,393.88/99,620.21 = 34,796.41/x
  3. Step 3: Cross multiply
    66,393.88x = 99,620.21 × 34,796.41
  4. Step 4: Simplify right side
    66,393.88x = 3,466,425,509.39
  5. Step 5: Solve for x
    x = 3,466,425,509.39/66,393.88
  6. Step 6: Final answer
    x = 52,210.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.