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Finding the Fourth Proportional to 8,770.01, 12,102.82 and 4,791.09

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Solution

The fourth proportional to 8,770.01, 12,102.82 and 4,791.09 is: 6,611.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,770.01 : 12,102.82 = 4,791.09 : x
  2. Step 2: Convert to fraction form
    8,770.01/12,102.82 = 4,791.09/x
  3. Step 3: Cross multiply
    8,770.01x = 12,102.82 × 4,791.09
  4. Step 4: Simplify right side
    8,770.01x = 57,985,699.87
  5. Step 5: Solve for x
    x = 57,985,699.87/8,770.01
  6. Step 6: Final answer
    x = 6,611.82

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1.5x scale

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.