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Finding the Fourth Proportional to 38,509.33, 53,136.89 and 21,741.97

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Solution

The fourth proportional to 38,509.33, 53,136.89 and 21,741.97 is: 30,000.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,509.33 : 53,136.89 = 21,741.97 : x
  2. Step 2: Convert to fraction form
    38,509.33/53,136.89 = 21,741.97/x
  3. Step 3: Cross multiply
    38,509.33x = 53,136.89 × 21,741.97
  4. Step 4: Simplify right side
    38,509.33x = 1,155,300,559.56
  5. Step 5: Solve for x
    x = 1,155,300,559.56/38,509.33
  6. Step 6: Final answer
    x = 30,000.54

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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.