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Finding the Fourth Proportional to 22,174.78, 33,251.10 and 7,378.51

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Solution

The fourth proportional to 22,174.78, 33,251.10 and 7,378.51 is: 11,064.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,174.78 : 33,251.10 = 7,378.51 : x
  2. Step 2: Convert to fraction form
    22,174.78/33,251.10 = 7,378.51/x
  3. Step 3: Cross multiply
    22,174.78x = 33,251.10 × 7,378.51
  4. Step 4: Simplify right side
    22,174.78x = 245,343,573.86
  5. Step 5: Solve for x
    x = 245,343,573.86/22,174.78
  6. Step 6: Final answer
    x = 11,064.08

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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.