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Finding the Fourth Proportional to 70,672.88, 105,819.96 and 37,323.92

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Solution

The fourth proportional to 70,672.88, 105,819.96 and 37,323.92 is: 55,885.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,672.88 : 105,819.96 = 37,323.92 : x
  2. Step 2: Convert to fraction form
    70,672.88/105,819.96 = 37,323.92/x
  3. Step 3: Cross multiply
    70,672.88x = 105,819.96 × 37,323.92
  4. Step 4: Simplify right side
    70,672.88x = 3,949,615,721.44
  5. Step 5: Solve for x
    x = 3,949,615,721.44/70,672.88
  6. Step 6: Final answer
    x = 55,885.87

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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.