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Finding the Fourth Proportional to 9,860.49, 14,795.06 and 5,179.41

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Solution

The fourth proportional to 9,860.49, 14,795.06 and 5,179.41 is: 7,771.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,860.49 : 14,795.06 = 5,179.41 : x
  2. Step 2: Convert to fraction form
    9,860.49/14,795.06 = 5,179.41/x
  3. Step 3: Cross multiply
    9,860.49x = 14,795.06 × 5,179.41
  4. Step 4: Simplify right side
    9,860.49x = 76,629,655.82
  5. Step 5: Solve for x
    x = 76,629,655.82/9,860.49
  6. Step 6: Final answer
    x = 7,771.38

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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.