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Finding the Fourth Proportional to 8,472.78, 11,692.23 and 4,695.93

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Solution

The fourth proportional to 8,472.78, 11,692.23 and 4,695.93 is: 6,480.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,472.78 : 11,692.23 = 4,695.93 : x
  2. Step 2: Convert to fraction form
    8,472.78/11,692.23 = 4,695.93/x
  3. Step 3: Cross multiply
    8,472.78x = 11,692.23 × 4,695.93
  4. Step 4: Simplify right side
    8,472.78x = 54,905,893.62
  5. Step 5: Solve for x
    x = 54,905,893.62/8,472.78
  6. Step 6: Final answer
    x = 6,480.27

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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.