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Finding the Fourth Proportional to 8,913.42, 13,361.85 and 3,068.64

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Solution

The fourth proportional to 8,913.42, 13,361.85 and 3,068.64 is: 4,600.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,913.42 : 13,361.85 = 3,068.64 : x
  2. Step 2: Convert to fraction form
    8,913.42/13,361.85 = 3,068.64/x
  3. Step 3: Cross multiply
    8,913.42x = 13,361.85 × 3,068.64
  4. Step 4: Simplify right side
    8,913.42x = 41,002,707.38
  5. Step 5: Solve for x
    x = 41,002,707.38/8,913.42
  6. Step 6: Final answer
    x = 4,600.11

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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.