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Finding the Fourth Proportional to 6,622.36, 9,935.99 and 4,775.56

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Solution

The fourth proportional to 6,622.36, 9,935.99 and 4,775.56 is: 7,165.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,622.36 : 9,935.99 = 4,775.56 : x
  2. Step 2: Convert to fraction form
    6,622.36/9,935.99 = 4,775.56/x
  3. Step 3: Cross multiply
    6,622.36x = 9,935.99 × 4,775.56
  4. Step 4: Simplify right side
    6,622.36x = 47,449,916.40
  5. Step 5: Solve for x
    x = 47,449,916.40/6,622.36
  6. Step 6: Final answer
    x = 7,165.11

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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.