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Finding the Fourth Proportional to 64,795.72, 89,384 and 44,617.60

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Solution

The fourth proportional to 64,795.72, 89,384 and 44,617.60 is: 61,548.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,795.72 : 89,384 = 44,617.60 : x
  2. Step 2: Convert to fraction form
    64,795.72/89,384 = 44,617.60/x
  3. Step 3: Cross multiply
    64,795.72x = 89,384 × 44,617.60
  4. Step 4: Simplify right side
    64,795.72x = 3,988,099,558.40
  5. Step 5: Solve for x
    x = 3,988,099,558.40/64,795.72
  6. Step 6: Final answer
    x = 61,548.81

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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.