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Finding the Fourth Proportional to 28,846.72, 39,805.78 and 16,743.99

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Solution

The fourth proportional to 28,846.72, 39,805.78 and 16,743.99 is: 23,105.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,846.72 : 39,805.78 = 16,743.99 : x
  2. Step 2: Convert to fraction form
    28,846.72/39,805.78 = 16,743.99/x
  3. Step 3: Cross multiply
    28,846.72x = 39,805.78 × 16,743.99
  4. Step 4: Simplify right side
    28,846.72x = 666,507,582.26
  5. Step 5: Solve for x
    x = 666,507,582.26/28,846.72
  6. Step 6: Final answer
    x = 23,105.14

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Why These Related Problems?

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