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Finding the Fourth Proportional to 33,615.51, 46,389.03 and 18,507.87

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Solution

The fourth proportional to 33,615.51, 46,389.03 and 18,507.87 is: 25,540.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,615.51 : 46,389.03 = 18,507.87 : x
  2. Step 2: Convert to fraction form
    33,615.51/46,389.03 = 18,507.87/x
  3. Step 3: Cross multiply
    33,615.51x = 46,389.03 × 18,507.87
  4. Step 4: Simplify right side
    33,615.51x = 858,562,136.67
  5. Step 5: Solve for x
    x = 858,562,136.67/33,615.51
  6. Step 6: Final answer
    x = 25,540.65

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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.