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Finding the Fourth Proportional to 18,344.49, 27,516.74 and 6,657.69

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Solution

The fourth proportional to 18,344.49, 27,516.74 and 6,657.69 is: 9,986.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,344.49 : 27,516.74 = 6,657.69 : x
  2. Step 2: Convert to fraction form
    18,344.49/27,516.74 = 6,657.69/x
  3. Step 3: Cross multiply
    18,344.49x = 27,516.74 × 6,657.69
  4. Step 4: Simplify right side
    18,344.49x = 183,197,924.73
  5. Step 5: Solve for x
    x = 183,197,924.73/18,344.49
  6. Step 6: Final answer
    x = 9,986.54

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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.