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Finding the Fourth Proportional to 18,446.86, 27,671.50 and 5,299.34

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Solution

The fourth proportional to 18,446.86, 27,671.50 and 5,299.34 is: 7,949.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,446.86 : 27,671.50 = 5,299.34 : x
  2. Step 2: Convert to fraction form
    18,446.86/27,671.50 = 5,299.34/x
  3. Step 3: Cross multiply
    18,446.86x = 27,671.50 × 5,299.34
  4. Step 4: Simplify right side
    18,446.86x = 146,640,686.81
  5. Step 5: Solve for x
    x = 146,640,686.81/18,446.86
  6. Step 6: Final answer
    x = 7,949.36

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Double scale
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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.