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Finding the Fourth Proportional to 9,660.86, 14,472.90 and 5,503.73

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Solution

The fourth proportional to 9,660.86, 14,472.90 and 5,503.73 is: 8,245.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,660.86 : 14,472.90 = 5,503.73 : x
  2. Step 2: Convert to fraction form
    9,660.86/14,472.90 = 5,503.73/x
  3. Step 3: Cross multiply
    9,660.86x = 14,472.90 × 5,503.73
  4. Step 4: Simplify right side
    9,660.86x = 79,654,933.92
  5. Step 5: Solve for x
    x = 79,654,933.92/9,660.86
  6. Step 6: Final answer
    x = 8,245.12

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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.