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Finding the Fourth Proportional to 7,745.52, 10,691.16 and 5,262.96

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Solution

The fourth proportional to 7,745.52, 10,691.16 and 5,262.96 is: 7,264.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,745.52 : 10,691.16 = 5,262.96 : x
  2. Step 2: Convert to fraction form
    7,745.52/10,691.16 = 5,262.96/x
  3. Step 3: Cross multiply
    7,745.52x = 10,691.16 × 5,262.96
  4. Step 4: Simplify right side
    7,745.52x = 56,267,147.43
  5. Step 5: Solve for x
    x = 56,267,147.43/7,745.52
  6. Step 6: Final answer
    x = 7,264.48

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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.