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Finding the Fourth Proportional to 7,754.74, 11,627.70 and 5,292.54

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Solution

The fourth proportional to 7,754.74, 11,627.70 and 5,292.54 is: 7,935.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,754.74 : 11,627.70 = 5,292.54 : x
  2. Step 2: Convert to fraction form
    7,754.74/11,627.70 = 5,292.54/x
  3. Step 3: Cross multiply
    7,754.74x = 11,627.70 × 5,292.54
  4. Step 4: Simplify right side
    7,754.74x = 61,540,067.36
  5. Step 5: Solve for x
    x = 61,540,067.36/7,754.74
  6. Step 6: Final answer
    x = 7,935.80

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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.