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Finding the Fourth Proportional to 64,792.70, 89,415.75 and 37,936.34

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Solution

The fourth proportional to 64,792.70, 89,415.75 and 37,936.34 is: 52,353.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,792.70 : 89,415.75 = 37,936.34 : x
  2. Step 2: Convert to fraction form
    64,792.70/89,415.75 = 37,936.34/x
  3. Step 3: Cross multiply
    64,792.70x = 89,415.75 × 37,936.34
  4. Step 4: Simplify right side
    64,792.70x = 3,392,105,846.28
  5. Step 5: Solve for x
    x = 3,392,105,846.28/64,792.70
  6. Step 6: Final answer
    x = 52,353.21

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1.5x scale

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.