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Finding the Fourth Proportional to 64,648.44, 89,215.38 and 36,353.88

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Solution

The fourth proportional to 64,648.44, 89,215.38 and 36,353.88 is: 50,168.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,648.44 : 89,215.38 = 36,353.88 : x
  2. Step 2: Convert to fraction form
    64,648.44/89,215.38 = 36,353.88/x
  3. Step 3: Cross multiply
    64,648.44x = 89,215.38 × 36,353.88
  4. Step 4: Simplify right side
    64,648.44x = 3,243,325,218.67
  5. Step 5: Solve for x
    x = 3,243,325,218.67/64,648.44
  6. Step 6: Final answer
    x = 50,168.65

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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.