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Finding the Fourth Proportional to 11,405.43, 17,088.03 and 10,167.03

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Solution

The fourth proportional to 11,405.43, 17,088.03 and 10,167.03 is: 15,232.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,405.43 : 17,088.03 = 10,167.03 : x
  2. Step 2: Convert to fraction form
    11,405.43/17,088.03 = 10,167.03/x
  3. Step 3: Cross multiply
    11,405.43x = 17,088.03 × 10,167.03
  4. Step 4: Simplify right side
    11,405.43x = 173,734,513.65
  5. Step 5: Solve for x
    x = 173,734,513.65/11,405.43
  6. Step 6: Final answer
    x = 15,232.61

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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.