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Finding the Fourth Proportional to 11,471.70, 17,207.55 and 11,034.30

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Solution

The fourth proportional to 11,471.70, 17,207.55 and 11,034.30 is: 16,551.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,471.70 : 17,207.55 = 11,034.30 : x
  2. Step 2: Convert to fraction form
    11,471.70/17,207.55 = 11,034.30/x
  3. Step 3: Cross multiply
    11,471.70x = 17,207.55 × 11,034.30
  4. Step 4: Simplify right side
    11,471.70x = 189,873,268.97
  5. Step 5: Solve for x
    x = 189,873,268.97/11,471.70
  6. Step 6: Final answer
    x = 16,551.45

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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.