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Finding the Fourth Proportional to 14,940.40, 22,410 and 6,168.72

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Solution

The fourth proportional to 14,940.40, 22,410 and 6,168.72 is: 9,252.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,940.40 : 22,410 = 6,168.72 : x
  2. Step 2: Convert to fraction form
    14,940.40/22,410 = 6,168.72/x
  3. Step 3: Cross multiply
    14,940.40x = 22,410 × 6,168.72
  4. Step 4: Simplify right side
    14,940.40x = 138,241,015.20
  5. Step 5: Solve for x
    x = 138,241,015.20/14,940.40
  6. Step 6: Final answer
    x = 9,252.83

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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.