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Finding the Fourth Proportional to 38,791.84, 58,187.76 and 18,004

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Solution

The fourth proportional to 38,791.84, 58,187.76 and 18,004 is: 27,006.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,791.84 : 58,187.76 = 18,004 : x
  2. Step 2: Convert to fraction form
    38,791.84/58,187.76 = 18,004/x
  3. Step 3: Cross multiply
    38,791.84x = 58,187.76 × 18,004
  4. Step 4: Simplify right side
    38,791.84x = 1,047,612,431.04
  5. Step 5: Solve for x
    x = 1,047,612,431.04/38,791.84
  6. Step 6: Final answer
    x = 27,006.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.