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Finding the Fourth Proportional to 70,067.62, 105,042.70 and 30,594.70

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Solution

The fourth proportional to 70,067.62, 105,042.70 and 30,594.70 is: 45,866.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,067.62 : 105,042.70 = 30,594.70 : x
  2. Step 2: Convert to fraction form
    70,067.62/105,042.70 = 30,594.70/x
  3. Step 3: Cross multiply
    70,067.62x = 105,042.70 × 30,594.70
  4. Step 4: Simplify right side
    70,067.62x = 3,213,749,893.69
  5. Step 5: Solve for x
    x = 3,213,749,893.69/70,067.62
  6. Step 6: Final answer
    x = 45,866.41

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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.