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Finding the Fourth Proportional to 62,697.76, 86,523.60 and 35,839.84

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Solution

The fourth proportional to 62,697.76, 86,523.60 and 35,839.84 is: 49,459.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,697.76 : 86,523.60 = 35,839.84 : x
  2. Step 2: Convert to fraction form
    62,697.76/86,523.60 = 35,839.84/x
  3. Step 3: Cross multiply
    62,697.76x = 86,523.60 × 35,839.84
  4. Step 4: Simplify right side
    62,697.76x = 3,100,991,980.22
  5. Step 5: Solve for x
    x = 3,100,991,980.22/62,697.76
  6. Step 6: Final answer
    x = 49,459.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.