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Finding the Fourth Proportional to 70,491.71, 105,695.34 and 22,439.56

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Solution

The fourth proportional to 70,491.71, 105,695.34 and 22,439.56 is: 33,645.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,491.71 : 105,695.34 = 22,439.56 : x
  2. Step 2: Convert to fraction form
    70,491.71/105,695.34 = 22,439.56/x
  3. Step 3: Cross multiply
    70,491.71x = 105,695.34 × 22,439.56
  4. Step 4: Simplify right side
    70,491.71x = 2,371,756,773.44
  5. Step 5: Solve for x
    x = 2,371,756,773.44/70,491.71
  6. Step 6: Final answer
    x = 33,645.90

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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.