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Finding the Fourth Proportional to 70,616.16, 105,912.58 and 23,231.84

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Solution

The fourth proportional to 70,616.16, 105,912.58 and 23,231.84 is: 34,843.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,616.16 : 105,912.58 = 23,231.84 : x
  2. Step 2: Convert to fraction form
    70,616.16/105,912.58 = 23,231.84/x
  3. Step 3: Cross multiply
    70,616.16x = 105,912.58 × 23,231.84
  4. Step 4: Simplify right side
    70,616.16x = 2,460,544,112.55
  5. Step 5: Solve for x
    x = 2,460,544,112.55/70,616.16
  6. Step 6: Final answer
    x = 34,843.92

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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.