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Finding the Fourth Proportional to 8,579.73, 11,840.49 and 5,222.01

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Solution

The fourth proportional to 8,579.73, 11,840.49 and 5,222.01 is: 7,206.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,579.73 : 11,840.49 = 5,222.01 : x
  2. Step 2: Convert to fraction form
    8,579.73/11,840.49 = 5,222.01/x
  3. Step 3: Cross multiply
    8,579.73x = 11,840.49 × 5,222.01
  4. Step 4: Simplify right side
    8,579.73x = 61,831,157.18
  5. Step 5: Solve for x
    x = 61,831,157.18/8,579.73
  6. Step 6: Final answer
    x = 7,206.66

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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.