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Finding the Fourth Proportional to 69,917.40, 104,841.76 and 29,930.73

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Solution

The fourth proportional to 69,917.40, 104,841.76 and 29,930.73 is: 44,881.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,917.40 : 104,841.76 = 29,930.73 : x
  2. Step 2: Convert to fraction form
    69,917.40/104,841.76 = 29,930.73/x
  3. Step 3: Cross multiply
    69,917.40x = 104,841.76 × 29,930.73
  4. Step 4: Simplify right side
    69,917.40x = 3,137,990,411.28
  5. Step 5: Solve for x
    x = 3,137,990,411.28/69,917.40
  6. Step 6: Final answer
    x = 44,881.39

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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.