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Finding the Fourth Proportional to 11,411.70, 17,135.15 and 6,227.70

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Solution

The fourth proportional to 11,411.70, 17,135.15 and 6,227.70 is: 9,351.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,411.70 : 17,135.15 = 6,227.70 : x
  2. Step 2: Convert to fraction form
    11,411.70/17,135.15 = 6,227.70/x
  3. Step 3: Cross multiply
    11,411.70x = 17,135.15 × 6,227.70
  4. Step 4: Simplify right side
    11,411.70x = 106,712,573.66
  5. Step 5: Solve for x
    x = 106,712,573.66/11,411.70
  6. Step 6: Final answer
    x = 9,351.15

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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.