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Finding the Fourth Proportional to 64,871.48, 89,525.76 and 36,576.56

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Solution

The fourth proportional to 64,871.48, 89,525.76 and 36,576.56 is: 50,477.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,871.48 : 89,525.76 = 36,576.56 : x
  2. Step 2: Convert to fraction form
    64,871.48/89,525.76 = 36,576.56/x
  3. Step 3: Cross multiply
    64,871.48x = 89,525.76 × 36,576.56
  4. Step 4: Simplify right side
    64,871.48x = 3,274,544,418.84
  5. Step 5: Solve for x
    x = 3,274,544,418.84/64,871.48
  6. Step 6: Final answer
    x = 50,477.41

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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.