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Finding the Fourth Proportional to 5,582.97, 8,362.15 and 3,111.66

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Solution

The fourth proportional to 5,582.97, 8,362.15 and 3,111.66 is: 4,660.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,582.97 : 8,362.15 = 3,111.66 : x
  2. Step 2: Convert to fraction form
    5,582.97/8,362.15 = 3,111.66/x
  3. Step 3: Cross multiply
    5,582.97x = 8,362.15 × 3,111.66
  4. Step 4: Simplify right side
    5,582.97x = 26,020,110.30
  5. Step 5: Solve for x
    x = 26,020,110.30/5,582.97
  6. Step 6: Final answer
    x = 4,660.63

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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.