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Finding the Fourth Proportional to 7,187.97, 9,919.02 and 4,044.36

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Solution

The fourth proportional to 7,187.97, 9,919.02 and 4,044.36 is: 5,581.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,187.97 : 9,919.02 = 4,044.36 : x
  2. Step 2: Convert to fraction form
    7,187.97/9,919.02 = 4,044.36/x
  3. Step 3: Cross multiply
    7,187.97x = 9,919.02 × 4,044.36
  4. Step 4: Simplify right side
    7,187.97x = 40,116,087.73
  5. Step 5: Solve for x
    x = 40,116,087.73/7,187.97
  6. Step 6: Final answer
    x = 5,581.00

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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.