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Finding the Fourth Proportional to 34,100.82, 47,059 and 18,993.66

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Solution

The fourth proportional to 34,100.82, 47,059 and 18,993.66 is: 26,211.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,100.82 : 47,059 = 18,993.66 : x
  2. Step 2: Convert to fraction form
    34,100.82/47,059 = 18,993.66/x
  3. Step 3: Cross multiply
    34,100.82x = 47,059 × 18,993.66
  4. Step 4: Simplify right side
    34,100.82x = 893,822,645.94
  5. Step 5: Solve for x
    x = 893,822,645.94/34,100.82
  6. Step 6: Final answer
    x = 26,211.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.