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Finding the Fourth Proportional to 4,664.80, 6,997.20 and 2,693.80

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Solution

The fourth proportional to 4,664.80, 6,997.20 and 2,693.80 is: 4,040.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,664.80 : 6,997.20 = 2,693.80 : x
  2. Step 2: Convert to fraction form
    4,664.80/6,997.20 = 2,693.80/x
  3. Step 3: Cross multiply
    4,664.80x = 6,997.20 × 2,693.80
  4. Step 4: Simplify right side
    4,664.80x = 18,849,057.36
  5. Step 5: Solve for x
    x = 18,849,057.36/4,664.80
  6. Step 6: Final answer
    x = 4,040.70

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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.