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Finding the Fourth Proportional to 12,242.42, 18,365.27 and 4,845.15

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Solution

The fourth proportional to 12,242.42, 18,365.27 and 4,845.15 is: 7,268.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,242.42 : 18,365.27 = 4,845.15 : x
  2. Step 2: Convert to fraction form
    12,242.42/18,365.27 = 4,845.15/x
  3. Step 3: Cross multiply
    12,242.42x = 18,365.27 × 4,845.15
  4. Step 4: Simplify right side
    12,242.42x = 88,982,492.73
  5. Step 5: Solve for x
    x = 88,982,492.73/12,242.42
  6. Step 6: Final answer
    x = 7,268.37

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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.