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Finding the Fourth Proportional to 6,623.64, 9,935.64 and 4,008.96

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Solution

The fourth proportional to 6,623.64, 9,935.64 and 4,008.96 is: 6,013.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,623.64 : 9,935.64 = 4,008.96 : x
  2. Step 2: Convert to fraction form
    6,623.64/9,935.64 = 4,008.96/x
  3. Step 3: Cross multiply
    6,623.64x = 9,935.64 × 4,008.96
  4. Step 4: Simplify right side
    6,623.64x = 39,831,583.33
  5. Step 5: Solve for x
    x = 39,831,583.33/6,623.64
  6. Step 6: Final answer
    x = 6,013.55

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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.