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Finding the Fourth Proportional to 18,583.35, 27,884.94 and 8,722.71

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Solution

The fourth proportional to 18,583.35, 27,884.94 and 8,722.71 is: 13,088.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,583.35 : 27,884.94 = 8,722.71 : x
  2. Step 2: Convert to fraction form
    18,583.35/27,884.94 = 8,722.71/x
  3. Step 3: Cross multiply
    18,583.35x = 27,884.94 × 8,722.71
  4. Step 4: Simplify right side
    18,583.35x = 243,232,244.99
  5. Step 5: Solve for x
    x = 243,232,244.99/18,583.35
  6. Step 6: Final answer
    x = 13,088.72

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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.