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Finding the Fourth Proportional to 4,543.88, 6,815.88 and 1,622.36

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Solution

The fourth proportional to 4,543.88, 6,815.88 and 1,622.36 is: 2,433.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,543.88 : 6,815.88 = 1,622.36 : x
  2. Step 2: Convert to fraction form
    4,543.88/6,815.88 = 1,622.36/x
  3. Step 3: Cross multiply
    4,543.88x = 6,815.88 × 1,622.36
  4. Step 4: Simplify right side
    4,543.88x = 11,057,811.08
  5. Step 5: Solve for x
    x = 11,057,811.08/4,543.88
  6. Step 6: Final answer
    x = 2,433.56

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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.