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Finding the Fourth Proportional to 11,617.11, 17,448.08 and 9,954.99

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Solution

The fourth proportional to 11,617.11, 17,448.08 and 9,954.99 is: 14,951.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,617.11 : 17,448.08 = 9,954.99 : x
  2. Step 2: Convert to fraction form
    11,617.11/17,448.08 = 9,954.99/x
  3. Step 3: Cross multiply
    11,617.11x = 17,448.08 × 9,954.99
  4. Step 4: Simplify right side
    11,617.11x = 173,695,461.92
  5. Step 5: Solve for x
    x = 173,695,461.92/11,617.11
  6. Step 6: Final answer
    x = 14,951.69

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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.