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Finding the Fourth Proportional to 6,622.66, 9,924.75 and 4,977.28

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Solution

The fourth proportional to 6,622.66, 9,924.75 and 4,977.28 is: 7,458.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,622.66 : 9,924.75 = 4,977.28 : x
  2. Step 2: Convert to fraction form
    6,622.66/9,924.75 = 4,977.28/x
  3. Step 3: Cross multiply
    6,622.66x = 9,924.75 × 4,977.28
  4. Step 4: Simplify right side
    6,622.66x = 49,398,185.17
  5. Step 5: Solve for x
    x = 49,398,185.17/6,622.66
  6. Step 6: Final answer
    x = 7,458.97

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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.