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Finding the Fourth Proportional to 8,671.34, 11,966.42 and 4,692.44

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Solution

The fourth proportional to 8,671.34, 11,966.42 and 4,692.44 is: 6,475.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,671.34 : 11,966.42 = 4,692.44 : x
  2. Step 2: Convert to fraction form
    8,671.34/11,966.42 = 4,692.44/x
  3. Step 3: Cross multiply
    8,671.34x = 11,966.42 × 4,692.44
  4. Step 4: Simplify right side
    8,671.34x = 56,151,707.86
  5. Step 5: Solve for x
    x = 56,151,707.86/8,671.34
  6. Step 6: Final answer
    x = 6,475.55

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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.