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Finding the Fourth Proportional to 40,513.67, 60,770.50 and 10,931.46

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Solution

The fourth proportional to 40,513.67, 60,770.50 and 10,931.46 is: 16,397.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,513.67 : 60,770.50 = 10,931.46 : x
  2. Step 2: Convert to fraction form
    40,513.67/60,770.50 = 10,931.46/x
  3. Step 3: Cross multiply
    40,513.67x = 60,770.50 × 10,931.46
  4. Step 4: Simplify right side
    40,513.67x = 664,310,096.20
  5. Step 5: Solve for x
    x = 664,310,096.20/40,513.67
  6. Step 6: Final answer
    x = 16,397.18

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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.