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Finding the Fourth Proportional to 70,630.25, 105,935.94 and 26,250.98

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Solution

The fourth proportional to 70,630.25, 105,935.94 and 26,250.98 is: 39,372.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,630.25 : 105,935.94 = 26,250.98 : x
  2. Step 2: Convert to fraction form
    70,630.25/105,935.94 = 26,250.98/x
  3. Step 3: Cross multiply
    70,630.25x = 105,935.94 × 26,250.98
  4. Step 4: Simplify right side
    70,630.25x = 2,780,921,712.54
  5. Step 5: Solve for x
    x = 2,780,921,712.54/70,630.25
  6. Step 6: Final answer
    x = 39,372.96

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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.