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Finding the Fourth Proportional to 70,630.50, 105,936.32 and 26,251.23

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Solution

The fourth proportional to 70,630.50, 105,936.32 and 26,251.23 is: 39,373.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,630.50 : 105,936.32 = 26,251.23 : x
  2. Step 2: Convert to fraction form
    70,630.50/105,936.32 = 26,251.23/x
  3. Step 3: Cross multiply
    70,630.50x = 105,936.32 × 26,251.23
  4. Step 4: Simplify right side
    70,630.50x = 2,780,958,040.74
  5. Step 5: Solve for x
    x = 2,780,958,040.74/70,630.50
  6. Step 6: Final answer
    x = 39,373.33

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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.