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Finding the Fourth Proportional to 64,982.01, 89,665.05 and 36,687.09

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Solution

The fourth proportional to 64,982.01, 89,665.05 and 36,687.09 is: 50,622.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,982.01 : 89,665.05 = 36,687.09 : x
  2. Step 2: Convert to fraction form
    64,982.01/89,665.05 = 36,687.09/x
  3. Step 3: Cross multiply
    64,982.01x = 89,665.05 × 36,687.09
  4. Step 4: Simplify right side
    64,982.01x = 3,289,549,759.20
  5. Step 5: Solve for x
    x = 3,289,549,759.20/64,982.01
  6. Step 6: Final answer
    x = 50,622.47

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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.