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Finding the Fourth Proportional to 12,462.53, 18,692.59 and 4,671.95

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Solution

The fourth proportional to 12,462.53, 18,692.59 and 4,671.95 is: 7,007.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,462.53 : 18,692.59 = 4,671.95 : x
  2. Step 2: Convert to fraction form
    12,462.53/18,692.59 = 4,671.95/x
  3. Step 3: Cross multiply
    12,462.53x = 18,692.59 × 4,671.95
  4. Step 4: Simplify right side
    12,462.53x = 87,330,845.85
  5. Step 5: Solve for x
    x = 87,330,845.85/12,462.53
  6. Step 6: Final answer
    x = 7,007.47

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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.