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Finding the Fourth Proportional to 9,889.81, 14,834.72 and 2,964.31

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Solution

The fourth proportional to 9,889.81, 14,834.72 and 2,964.31 is: 4,446.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,889.81 : 14,834.72 = 2,964.31 : x
  2. Step 2: Convert to fraction form
    9,889.81/14,834.72 = 2,964.31/x
  3. Step 3: Cross multiply
    9,889.81x = 14,834.72 × 2,964.31
  4. Step 4: Simplify right side
    9,889.81x = 43,974,708.84
  5. Step 5: Solve for x
    x = 43,974,708.84/9,889.81
  6. Step 6: Final answer
    x = 4,446.47

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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.