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Finding the Fourth Proportional to 70,407.53, 105,609.44 and 23,660.39

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Solution

The fourth proportional to 70,407.53, 105,609.44 and 23,660.39 is: 35,489.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,407.53 : 105,609.44 = 23,660.39 : x
  2. Step 2: Convert to fraction form
    70,407.53/105,609.44 = 23,660.39/x
  3. Step 3: Cross multiply
    70,407.53x = 105,609.44 × 23,660.39
  4. Step 4: Simplify right side
    70,407.53x = 2,498,760,069.19
  5. Step 5: Solve for x
    x = 2,498,760,069.19/70,407.53
  6. Step 6: Final answer
    x = 35,489.96

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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.