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Finding the Fourth Proportional to 70,653.42, 105,940.20 and 23,255.73

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Solution

The fourth proportional to 70,653.42, 105,940.20 and 23,255.73 is: 34,870.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,653.42 : 105,940.20 = 23,255.73 : x
  2. Step 2: Convert to fraction form
    70,653.42/105,940.20 = 23,255.73/x
  3. Step 3: Cross multiply
    70,653.42x = 105,940.20 × 23,255.73
  4. Step 4: Simplify right side
    70,653.42x = 2,463,716,687.35
  5. Step 5: Solve for x
    x = 2,463,716,687.35/70,653.42
  6. Step 6: Final answer
    x = 34,870.45

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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.