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Finding the Fourth Proportional to 5,722.48, 8,583.80 and 1,618.48

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Solution

The fourth proportional to 5,722.48, 8,583.80 and 1,618.48 is: 2,427.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,722.48 : 8,583.80 = 1,618.48 : x
  2. Step 2: Convert to fraction form
    5,722.48/8,583.80 = 1,618.48/x
  3. Step 3: Cross multiply
    5,722.48x = 8,583.80 × 1,618.48
  4. Step 4: Simplify right side
    5,722.48x = 13,892,708.62
  5. Step 5: Solve for x
    x = 13,892,708.62/5,722.48
  6. Step 6: Final answer
    x = 2,427.74

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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.