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Finding the Fourth Proportional to 64,363.82, 96,389.87 and 32,690.57

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Solution

The fourth proportional to 64,363.82, 96,389.87 and 32,690.57 is: 48,956.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,363.82 : 96,389.87 = 32,690.57 : x
  2. Step 2: Convert to fraction form
    64,363.82/96,389.87 = 32,690.57/x
  3. Step 3: Cross multiply
    64,363.82x = 96,389.87 × 32,690.57
  4. Step 4: Simplify right side
    64,363.82x = 3,151,039,147.12
  5. Step 5: Solve for x
    x = 3,151,039,147.12/64,363.82
  6. Step 6: Final answer
    x = 48,956.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.