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Finding the Fourth Proportional to 12,236.36, 18,354.53 and 3,470.13

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Solution

The fourth proportional to 12,236.36, 18,354.53 and 3,470.13 is: 5,205.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,236.36 : 18,354.53 = 3,470.13 : x
  2. Step 2: Convert to fraction form
    12,236.36/18,354.53 = 3,470.13/x
  3. Step 3: Cross multiply
    12,236.36x = 18,354.53 × 3,470.13
  4. Step 4: Simplify right side
    12,236.36x = 63,692,587.84
  5. Step 5: Solve for x
    x = 63,692,587.84/12,236.36
  6. Step 6: Final answer
    x = 5,205.19

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.