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Finding the Fourth Proportional to 5,361.16, 7,381.56 and 4,869.08

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Solution

The fourth proportional to 5,361.16, 7,381.56 and 4,869.08 is: 6,704.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,361.16 : 7,381.56 = 4,869.08 : x
  2. Step 2: Convert to fraction form
    5,361.16/7,381.56 = 4,869.08/x
  3. Step 3: Cross multiply
    5,361.16x = 7,381.56 × 4,869.08
  4. Step 4: Simplify right side
    5,361.16x = 35,941,406.16
  5. Step 5: Solve for x
    x = 35,941,406.16/5,361.16
  6. Step 6: Final answer
    x = 6,704.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.