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Finding the Fourth Proportional to 5,990.52, 8,272.62 and 5,663.28

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Solution

The fourth proportional to 5,990.52, 8,272.62 and 5,663.28 is: 7,820.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,990.52 : 8,272.62 = 5,663.28 : x
  2. Step 2: Convert to fraction form
    5,990.52/8,272.62 = 5,663.28/x
  3. Step 3: Cross multiply
    5,990.52x = 8,272.62 × 5,663.28
  4. Step 4: Simplify right side
    5,990.52x = 46,850,163.39
  5. Step 5: Solve for x
    x = 46,850,163.39/5,990.52
  6. Step 6: Final answer
    x = 7,820.72

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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.