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Finding the Fourth Proportional to 12,363.56, 18,539.16 and 4,039.26

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Solution

The fourth proportional to 12,363.56, 18,539.16 and 4,039.26 is: 6,056.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,363.56 : 18,539.16 = 4,039.26 : x
  2. Step 2: Convert to fraction form
    12,363.56/18,539.16 = 4,039.26/x
  3. Step 3: Cross multiply
    12,363.56x = 18,539.16 × 4,039.26
  4. Step 4: Simplify right side
    12,363.56x = 74,884,487.42
  5. Step 5: Solve for x
    x = 74,884,487.42/12,363.56
  6. Step 6: Final answer
    x = 6,056.87

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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.