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Finding the Fourth Proportional to 64,991, 89,701.44 and 44,600.96

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Solution

The fourth proportional to 64,991, 89,701.44 and 44,600.96 is: 61,558.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,991 : 89,701.44 = 44,600.96 : x
  2. Step 2: Convert to fraction form
    64,991/89,701.44 = 44,600.96/x
  3. Step 3: Cross multiply
    64,991x = 89,701.44 × 44,600.96
  4. Step 4: Simplify right side
    64,991x = 4,000,770,337.38
  5. Step 5: Solve for x
    x = 4,000,770,337.38/64,991
  6. Step 6: Final answer
    x = 61,558.84

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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.