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Finding the Fourth Proportional to 10,756.62, 16,129.62 and 3,361.86

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Solution

The fourth proportional to 10,756.62, 16,129.62 and 3,361.86 is: 5,041.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,756.62 : 16,129.62 = 3,361.86 : x
  2. Step 2: Convert to fraction form
    10,756.62/16,129.62 = 3,361.86/x
  3. Step 3: Cross multiply
    10,756.62x = 16,129.62 × 3,361.86
  4. Step 4: Simplify right side
    10,756.62x = 54,225,524.29
  5. Step 5: Solve for x
    x = 54,225,524.29/10,756.62
  6. Step 6: Final answer
    x = 5,041.13

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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.