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Finding the Fourth Proportional to 8,486.06, 12,724.26 and 3,487.01

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Solution

The fourth proportional to 8,486.06, 12,724.26 and 3,487.01 is: 5,228.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,486.06 : 12,724.26 = 3,487.01 : x
  2. Step 2: Convert to fraction form
    8,486.06/12,724.26 = 3,487.01/x
  3. Step 3: Cross multiply
    8,486.06x = 12,724.26 × 3,487.01
  4. Step 4: Simplify right side
    8,486.06x = 44,369,621.86
  5. Step 5: Solve for x
    x = 44,369,621.86/8,486.06
  6. Step 6: Final answer
    x = 5,228.53

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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.