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Finding the Fourth Proportional to 8,723.25, 12,039.84 and 4,997.25

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Solution

The fourth proportional to 8,723.25, 12,039.84 and 4,997.25 is: 6,897.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,723.25 : 12,039.84 = 4,997.25 : x
  2. Step 2: Convert to fraction form
    8,723.25/12,039.84 = 4,997.25/x
  3. Step 3: Cross multiply
    8,723.25x = 12,039.84 × 4,997.25
  4. Step 4: Simplify right side
    8,723.25x = 60,166,090.44
  5. Step 5: Solve for x
    x = 60,166,090.44/8,723.25
  6. Step 6: Final answer
    x = 6,897.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.