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Finding the Fourth Proportional to 23,609.80, 32,581.02 and 12,999.16

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Solution

The fourth proportional to 23,609.80, 32,581.02 and 12,999.16 is: 17,938.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,609.80 : 32,581.02 = 12,999.16 : x
  2. Step 2: Convert to fraction form
    23,609.80/32,581.02 = 12,999.16/x
  3. Step 3: Cross multiply
    23,609.80x = 32,581.02 × 12,999.16
  4. Step 4: Simplify right side
    23,609.80x = 423,525,891.94
  5. Step 5: Solve for x
    x = 423,525,891.94/23,609.80
  6. Step 6: Final answer
    x = 17,938.56

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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.