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Finding the Fourth Proportional to 9,361.89, 14,038.13 and 3,119.72

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Solution

The fourth proportional to 9,361.89, 14,038.13 and 3,119.72 is: 4,678.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,361.89 : 14,038.13 = 3,119.72 : x
  2. Step 2: Convert to fraction form
    9,361.89/14,038.13 = 3,119.72/x
  3. Step 3: Cross multiply
    9,361.89x = 14,038.13 × 3,119.72
  4. Step 4: Simplify right side
    9,361.89x = 43,794,972.53
  5. Step 5: Solve for x
    x = 43,794,972.53/9,361.89
  6. Step 6: Final answer
    x = 4,678.01

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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.