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Finding the Fourth Proportional to 3,111.68, 4,665.46 and 1,651.52

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Solution

The fourth proportional to 3,111.68, 4,665.46 and 1,651.52 is: 2,476.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111.68 : 4,665.46 = 1,651.52 : x
  2. Step 2: Convert to fraction form
    3,111.68/4,665.46 = 1,651.52/x
  3. Step 3: Cross multiply
    3,111.68x = 4,665.46 × 1,651.52
  4. Step 4: Simplify right side
    3,111.68x = 7,705,100.50
  5. Step 5: Solve for x
    x = 7,705,100.50/3,111.68
  6. Step 6: Final answer
    x = 2,476.19

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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.