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Finding the Fourth Proportional to 4,104, 6,156.20 and 1,330.43

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Solution

The fourth proportional to 4,104, 6,156.20 and 1,330.43 is: 1,995.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,104 : 6,156.20 = 1,330.43 : x
  2. Step 2: Convert to fraction form
    4,104/6,156.20 = 1,330.43/x
  3. Step 3: Cross multiply
    4,104x = 6,156.20 × 1,330.43
  4. Step 4: Simplify right side
    4,104x = 8,190,365.71
  5. Step 5: Solve for x
    x = 8,190,365.71/4,104
  6. Step 6: Final answer
    x = 1,995.70

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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.