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Finding the Fourth Proportional to 11,870.97, 17,806.41 and 4,849.47

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Solution

The fourth proportional to 11,870.97, 17,806.41 and 4,849.47 is: 7,274.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,870.97 : 17,806.41 = 4,849.47 : x
  2. Step 2: Convert to fraction form
    11,870.97/17,806.41 = 4,849.47/x
  3. Step 3: Cross multiply
    11,870.97x = 17,806.41 × 4,849.47
  4. Step 4: Simplify right side
    11,870.97x = 86,351,651.10
  5. Step 5: Solve for x
    x = 86,351,651.10/11,870.97
  6. Step 6: Final answer
    x = 7,274.19

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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.