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Finding the Fourth Proportional to 6,619.52, 9,922.20 and 4,970.97

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Solution

The fourth proportional to 6,619.52, 9,922.20 and 4,970.97 is: 7,451.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.52 : 9,922.20 = 4,970.97 : x
  2. Step 2: Convert to fraction form
    6,619.52/9,922.20 = 4,970.97/x
  3. Step 3: Cross multiply
    6,619.52x = 9,922.20 × 4,970.97
  4. Step 4: Simplify right side
    6,619.52x = 49,322,939.89
  5. Step 5: Solve for x
    x = 49,322,939.89/6,619.52
  6. Step 6: Final answer
    x = 7,451.13

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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.