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Finding the Fourth Proportional to 12,472.58, 17,234.98 and 11,865.14

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Solution

The fourth proportional to 12,472.58, 17,234.98 and 11,865.14 is: 16,395.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,472.58 : 17,234.98 = 11,865.14 : x
  2. Step 2: Convert to fraction form
    12,472.58/17,234.98 = 11,865.14/x
  3. Step 3: Cross multiply
    12,472.58x = 17,234.98 × 11,865.14
  4. Step 4: Simplify right side
    12,472.58x = 204,495,450.60
  5. Step 5: Solve for x
    x = 204,495,450.60/12,472.58
  6. Step 6: Final answer
    x = 16,395.60

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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.