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Finding the Fourth Proportional to 18,600.92, 27,890.88 and 6,117.57

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Solution

The fourth proportional to 18,600.92, 27,890.88 and 6,117.57 is: 9,172.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,600.92 : 27,890.88 = 6,117.57 : x
  2. Step 2: Convert to fraction form
    18,600.92/27,890.88 = 6,117.57/x
  3. Step 3: Cross multiply
    18,600.92x = 27,890.88 × 6,117.57
  4. Step 4: Simplify right side
    18,600.92x = 170,624,410.76
  5. Step 5: Solve for x
    x = 170,624,410.76/18,600.92
  6. Step 6: Final answer
    x = 9,172.90

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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.