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Finding the Fourth Proportional to 23,219.81, 32,042.48 and 12,609.21

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Solution

The fourth proportional to 23,219.81, 32,042.48 and 12,609.21 is: 17,400.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,219.81 : 32,042.48 = 12,609.21 : x
  2. Step 2: Convert to fraction form
    23,219.81/32,042.48 = 12,609.21/x
  3. Step 3: Cross multiply
    23,219.81x = 32,042.48 × 12,609.21
  4. Step 4: Simplify right side
    23,219.81x = 404,030,296.19
  5. Step 5: Solve for x
    x = 404,030,296.19/23,219.81
  6. Step 6: Final answer
    x = 17,400.25

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