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Finding the Fourth Proportional to 6,411.72, 9,607.02 and 3,941.33

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Solution

The fourth proportional to 6,411.72, 9,607.02 and 3,941.33 is: 5,905.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,411.72 : 9,607.02 = 3,941.33 : x
  2. Step 2: Convert to fraction form
    6,411.72/9,607.02 = 3,941.33/x
  3. Step 3: Cross multiply
    6,411.72x = 9,607.02 × 3,941.33
  4. Step 4: Simplify right side
    6,411.72x = 37,864,388.10
  5. Step 5: Solve for x
    x = 37,864,388.10/6,411.72
  6. Step 6: Final answer
    x = 5,905.50

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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.