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Finding the Fourth Proportional to 5,778.02, 8,664.86 and 2,490.86

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Solution

The fourth proportional to 5,778.02, 8,664.86 and 2,490.86 is: 3,735.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,778.02 : 8,664.86 = 2,490.86 : x
  2. Step 2: Convert to fraction form
    5,778.02/8,664.86 = 2,490.86/x
  3. Step 3: Cross multiply
    5,778.02x = 8,664.86 × 2,490.86
  4. Step 4: Simplify right side
    5,778.02x = 21,582,953.18
  5. Step 5: Solve for x
    x = 21,582,953.18/5,778.02
  6. Step 6: Final answer
    x = 3,735.35

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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.