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Finding the Fourth Proportional to 12,334.26, 18,499.95 and 4,938.42

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Solution

The fourth proportional to 12,334.26, 18,499.95 and 4,938.42 is: 7,407.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,334.26 : 18,499.95 = 4,938.42 : x
  2. Step 2: Convert to fraction form
    12,334.26/18,499.95 = 4,938.42/x
  3. Step 3: Cross multiply
    12,334.26x = 18,499.95 × 4,938.42
  4. Step 4: Simplify right side
    12,334.26x = 91,360,523.08
  5. Step 5: Solve for x
    x = 91,360,523.08/12,334.26
  6. Step 6: Final answer
    x = 7,407.05

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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.