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Finding the Fourth Proportional to 70,641.36, 105,896.40 and 23,861.76

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Solution

The fourth proportional to 70,641.36, 105,896.40 and 23,861.76 is: 35,770.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,641.36 : 105,896.40 = 23,861.76 : x
  2. Step 2: Convert to fraction form
    70,641.36/105,896.40 = 23,861.76/x
  3. Step 3: Cross multiply
    70,641.36x = 105,896.40 × 23,861.76
  4. Step 4: Simplify right side
    70,641.36x = 2,526,874,481.66
  5. Step 5: Solve for x
    x = 2,526,874,481.66/70,641.36
  6. Step 6: Final answer
    x = 35,770.47

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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.