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Finding the Fourth Proportional to 18,445.87, 27,667.09 and 7,349.59

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Solution

The fourth proportional to 18,445.87, 27,667.09 and 7,349.59 is: 11,023.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,445.87 : 27,667.09 = 7,349.59 : x
  2. Step 2: Convert to fraction form
    18,445.87/27,667.09 = 7,349.59/x
  3. Step 3: Cross multiply
    18,445.87x = 27,667.09 × 7,349.59
  4. Step 4: Simplify right side
    18,445.87x = 203,341,767.99
  5. Step 5: Solve for x
    x = 203,341,767.99/18,445.87
  6. Step 6: Final answer
    x = 11,023.70

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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.