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Finding the Fourth Proportional to 12,472.85, 18,699.48 and 6,548.67

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Solution

The fourth proportional to 12,472.85, 18,699.48 and 6,548.67 is: 9,817.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,472.85 : 18,699.48 = 6,548.67 : x
  2. Step 2: Convert to fraction form
    12,472.85/18,699.48 = 6,548.67/x
  3. Step 3: Cross multiply
    12,472.85x = 18,699.48 × 6,548.67
  4. Step 4: Simplify right side
    12,472.85x = 122,456,723.69
  5. Step 5: Solve for x
    x = 122,456,723.69/12,472.85
  6. Step 6: Final answer
    x = 9,817.86

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1.5x scale

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.