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Finding the Fourth Proportional to 11,793.80, 17,708.46 and 11,415.17

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Solution

The fourth proportional to 11,793.80, 17,708.46 and 11,415.17 is: 17,139.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,793.80 : 17,708.46 = 11,415.17 : x
  2. Step 2: Convert to fraction form
    11,793.80/17,708.46 = 11,415.17/x
  3. Step 3: Cross multiply
    11,793.80x = 17,708.46 × 11,415.17
  4. Step 4: Simplify right side
    11,793.80x = 202,145,081.34
  5. Step 5: Solve for x
    x = 202,145,081.34/11,793.80
  6. Step 6: Final answer
    x = 17,139.94

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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.