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Finding the Fourth Proportional to 6,622.89, 9,934.59 and 1,692.66

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Solution

The fourth proportional to 6,622.89, 9,934.59 and 1,692.66 is: 2,539.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,622.89 : 9,934.59 = 1,692.66 : x
  2. Step 2: Convert to fraction form
    6,622.89/9,934.59 = 1,692.66/x
  3. Step 3: Cross multiply
    6,622.89x = 9,934.59 × 1,692.66
  4. Step 4: Simplify right side
    6,622.89x = 16,815,883.11
  5. Step 5: Solve for x
    x = 16,815,883.11/6,622.89
  6. Step 6: Final answer
    x = 2,539.06

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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.