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Finding the Fourth Proportional to 9,889.64, 14,834.54 and 3,316.34

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Solution

The fourth proportional to 9,889.64, 14,834.54 and 3,316.34 is: 4,974.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,889.64 : 14,834.54 = 3,316.34 : x
  2. Step 2: Convert to fraction form
    9,889.64/14,834.54 = 3,316.34/x
  3. Step 3: Cross multiply
    9,889.64x = 14,834.54 × 3,316.34
  4. Step 4: Simplify right side
    9,889.64x = 49,196,378.38
  5. Step 5: Solve for x
    x = 49,196,378.38/9,889.64
  6. Step 6: Final answer
    x = 4,974.54

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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.