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Finding the Fourth Proportional to 18,468.92, 27,703.43 and 7,376.51

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Solution

The fourth proportional to 18,468.92, 27,703.43 and 7,376.51 is: 11,064.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,468.92 : 27,703.43 = 7,376.51 : x
  2. Step 2: Convert to fraction form
    18,468.92/27,703.43 = 7,376.51/x
  3. Step 3: Cross multiply
    18,468.92x = 27,703.43 × 7,376.51
  4. Step 4: Simplify right side
    18,468.92x = 204,354,628.43
  5. Step 5: Solve for x
    x = 204,354,628.43/18,468.92
  6. Step 6: Final answer
    x = 11,064.78

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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.