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Finding the Fourth Proportional to 18,174.51, 27,274.32 and 11,937.51

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Solution

The fourth proportional to 18,174.51, 27,274.32 and 11,937.51 is: 17,914.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,174.51 : 27,274.32 = 11,937.51 : x
  2. Step 2: Convert to fraction form
    18,174.51/27,274.32 = 11,937.51/x
  3. Step 3: Cross multiply
    18,174.51x = 27,274.32 × 11,937.51
  4. Step 4: Simplify right side
    18,174.51x = 325,587,467.74
  5. Step 5: Solve for x
    x = 325,587,467.74/18,174.51
  6. Step 6: Final answer
    x = 17,914.51

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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.