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Finding the Fourth Proportional to 18,389.32, 27,583.94 and 6,697.76

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Solution

The fourth proportional to 18,389.32, 27,583.94 and 6,697.76 is: 10,046.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,389.32 : 27,583.94 = 6,697.76 : x
  2. Step 2: Convert to fraction form
    18,389.32/27,583.94 = 6,697.76/x
  3. Step 3: Cross multiply
    18,389.32x = 27,583.94 × 6,697.76
  4. Step 4: Simplify right side
    18,389.32x = 184,750,609.97
  5. Step 5: Solve for x
    x = 184,750,609.97/18,389.32
  6. Step 6: Final answer
    x = 10,046.63

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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.