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Finding the Fourth Proportional to 14,273.75, 19,696.95 and 7,899.99

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Solution

The fourth proportional to 14,273.75, 19,696.95 and 7,899.99 is: 10,901.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,273.75 : 19,696.95 = 7,899.99 : x
  2. Step 2: Convert to fraction form
    14,273.75/19,696.95 = 7,899.99/x
  3. Step 3: Cross multiply
    14,273.75x = 19,696.95 × 7,899.99
  4. Step 4: Simplify right side
    14,273.75x = 155,605,708.03
  5. Step 5: Solve for x
    x = 155,605,708.03/14,273.75
  6. Step 6: Final answer
    x = 10,901.53

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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.