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Finding the Fourth Proportional to 8,192.78, 11,292.78 and 5,535.52

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Solution

The fourth proportional to 8,192.78, 11,292.78 and 5,535.52 is: 7,630.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,192.78 : 11,292.78 = 5,535.52 : x
  2. Step 2: Convert to fraction form
    8,192.78/11,292.78 = 5,535.52/x
  3. Step 3: Cross multiply
    8,192.78x = 11,292.78 × 5,535.52
  4. Step 4: Simplify right side
    8,192.78x = 62,511,409.55
  5. Step 5: Solve for x
    x = 62,511,409.55/8,192.78
  6. Step 6: Final answer
    x = 7,630.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.