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Finding the Fourth Proportional to 27,969.99, 41,955 and 19,178.25

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Solution

The fourth proportional to 27,969.99, 41,955 and 19,178.25 is: 28,767.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,969.99 : 41,955 = 19,178.25 : x
  2. Step 2: Convert to fraction form
    27,969.99/41,955 = 19,178.25/x
  3. Step 3: Cross multiply
    27,969.99x = 41,955 × 19,178.25
  4. Step 4: Simplify right side
    27,969.99x = 804,623,478.75
  5. Step 5: Solve for x
    x = 804,623,478.75/27,969.99
  6. Step 6: Final answer
    x = 28,767.39

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