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Finding the Fourth Proportional to 70,272.66, 105,416.39 and 22,891.46

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Solution

The fourth proportional to 70,272.66, 105,416.39 and 22,891.46 is: 34,339.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,272.66 : 105,416.39 = 22,891.46 : x
  2. Step 2: Convert to fraction form
    70,272.66/105,416.39 = 22,891.46/x
  3. Step 3: Cross multiply
    70,272.66x = 105,416.39 × 22,891.46
  4. Step 4: Simplify right side
    70,272.66x = 2,413,134,433.49
  5. Step 5: Solve for x
    x = 2,413,134,433.49/70,272.66
  6. Step 6: Final answer
    x = 34,339.59

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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.