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Finding the Fourth Proportional to 64,998.64, 89,697.99 and 36,704.35

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Solution

The fourth proportional to 64,998.64, 89,697.99 and 36,704.35 is: 50,651.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,998.64 : 89,697.99 = 36,704.35 : x
  2. Step 2: Convert to fraction form
    64,998.64/89,697.99 = 36,704.35/x
  3. Step 3: Cross multiply
    64,998.64x = 89,697.99 × 36,704.35
  4. Step 4: Simplify right side
    64,998.64x = 3,292,306,419.26
  5. Step 5: Solve for x
    x = 3,292,306,419.26/64,998.64
  6. Step 6: Final answer
    x = 50,651.93

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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.