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Finding the Fourth Proportional to 40,513.48, 60,770.22 and 10,931.32

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Solution

The fourth proportional to 40,513.48, 60,770.22 and 10,931.32 is: 16,396.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,513.48 : 60,770.22 = 10,931.32 : x
  2. Step 2: Convert to fraction form
    40,513.48/60,770.22 = 10,931.32/x
  3. Step 3: Cross multiply
    40,513.48x = 60,770.22 × 10,931.32
  4. Step 4: Simplify right side
    40,513.48x = 664,298,475.92
  5. Step 5: Solve for x
    x = 664,298,475.92/40,513.48
  6. Step 6: Final answer
    x = 16,396.97

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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.