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Finding the Fourth Proportional to 12,366.74, 18,553.18 and 3,601.74

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Solution

The fourth proportional to 12,366.74, 18,553.18 and 3,601.74 is: 5,403.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,366.74 : 18,553.18 = 3,601.74 : x
  2. Step 2: Convert to fraction form
    12,366.74/18,553.18 = 3,601.74/x
  3. Step 3: Cross multiply
    12,366.74x = 18,553.18 × 3,601.74
  4. Step 4: Simplify right side
    12,366.74x = 66,823,730.53
  5. Step 5: Solve for x
    x = 66,823,730.53/12,366.74
  6. Step 6: Final answer
    x = 5,403.50

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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.