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Finding the Fourth Proportional to 4,716.84, 7,071.42 and 2,889

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Solution

The fourth proportional to 4,716.84, 7,071.42 and 2,889 is: 4,331.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,716.84 : 7,071.42 = 2,889 : x
  2. Step 2: Convert to fraction form
    4,716.84/7,071.42 = 2,889/x
  3. Step 3: Cross multiply
    4,716.84x = 7,071.42 × 2,889
  4. Step 4: Simplify right side
    4,716.84x = 20,429,332.38
  5. Step 5: Solve for x
    x = 20,429,332.38/4,716.84
  6. Step 6: Final answer
    x = 4,331.15

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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.