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Finding the Fourth Proportional to 23,742.40, 35,611.92 and 8,159.68

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Solution

The fourth proportional to 23,742.40, 35,611.92 and 8,159.68 is: 12,238.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,742.40 : 35,611.92 = 8,159.68 : x
  2. Step 2: Convert to fraction form
    23,742.40/35,611.92 = 8,159.68/x
  3. Step 3: Cross multiply
    23,742.40x = 35,611.92 × 8,159.68
  4. Step 4: Simplify right side
    23,742.40x = 290,581,871.39
  5. Step 5: Solve for x
    x = 290,581,871.39/23,742.40
  6. Step 6: Final answer
    x = 12,238.94

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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.