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Finding the Fourth Proportional to 70,716.56, 106,047.05 and 25,727.22

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Solution

The fourth proportional to 70,716.56, 106,047.05 and 25,727.22 is: 38,580.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,716.56 : 106,047.05 = 25,727.22 : x
  2. Step 2: Convert to fraction form
    70,716.56/106,047.05 = 25,727.22/x
  3. Step 3: Cross multiply
    70,716.56x = 106,047.05 × 25,727.22
  4. Step 4: Simplify right side
    70,716.56x = 2,728,295,657.06
  5. Step 5: Solve for x
    x = 2,728,295,657.06/70,716.56
  6. Step 6: Final answer
    x = 38,580.72

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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.