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Finding the Fourth Proportional to 9,889.11, 14,834.96 and 3,653.49

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Solution

The fourth proportional to 9,889.11, 14,834.96 and 3,653.49 is: 5,480.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,889.11 : 14,834.96 = 3,653.49 : x
  2. Step 2: Convert to fraction form
    9,889.11/14,834.96 = 3,653.49/x
  3. Step 3: Cross multiply
    9,889.11x = 14,834.96 × 3,653.49
  4. Step 4: Simplify right side
    9,889.11x = 54,199,359.74
  5. Step 5: Solve for x
    x = 54,199,359.74/9,889.11
  6. Step 6: Final answer
    x = 5,480.71

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1.5x scale

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.