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Finding the Fourth Proportional to 64,943.84, 89,622.48 and 36,649.44

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Solution

The fourth proportional to 64,943.84, 89,622.48 and 36,649.44 is: 50,576.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,943.84 : 89,622.48 = 36,649.44 : x
  2. Step 2: Convert to fraction form
    64,943.84/89,622.48 = 36,649.44/x
  3. Step 3: Cross multiply
    64,943.84x = 89,622.48 × 36,649.44
  4. Step 4: Simplify right side
    64,943.84x = 3,284,613,703.41
  5. Step 5: Solve for x
    x = 3,284,613,703.41/64,943.84
  6. Step 6: Final answer
    x = 50,576.22

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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.