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Finding the Fourth Proportional to 4,699.78, 6,485.81 and 2,604.02

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Solution

The fourth proportional to 4,699.78, 6,485.81 and 2,604.02 is: 3,593.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,699.78 : 6,485.81 = 2,604.02 : x
  2. Step 2: Convert to fraction form
    4,699.78/6,485.81 = 2,604.02/x
  3. Step 3: Cross multiply
    4,699.78x = 6,485.81 × 2,604.02
  4. Step 4: Simplify right side
    4,699.78x = 16,889,178.96
  5. Step 5: Solve for x
    x = 16,889,178.96/4,699.78
  6. Step 6: Final answer
    x = 3,593.61

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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.