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Finding the Fourth Proportional to 38,891.67, 53,669.68 and 23,784.49

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Solution

The fourth proportional to 38,891.67, 53,669.68 and 23,784.49 is: 32,822.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,891.67 : 53,669.68 = 23,784.49 : x
  2. Step 2: Convert to fraction form
    38,891.67/53,669.68 = 23,784.49/x
  3. Step 3: Cross multiply
    38,891.67x = 53,669.68 × 23,784.49
  4. Step 4: Simplify right side
    38,891.67x = 1,276,505,967.26
  5. Step 5: Solve for x
    x = 1,276,505,967.26/38,891.67
  6. Step 6: Final answer
    x = 32,822.09

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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.