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Finding the Fourth Proportional to 52,880.42, 72,987.68 and 35,912.94

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Solution

The fourth proportional to 52,880.42, 72,987.68 and 35,912.94 is: 49,568.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,880.42 : 72,987.68 = 35,912.94 : x
  2. Step 2: Convert to fraction form
    52,880.42/72,987.68 = 35,912.94/x
  3. Step 3: Cross multiply
    52,880.42x = 72,987.68 × 35,912.94
  4. Step 4: Simplify right side
    52,880.42x = 2,621,202,172.58
  5. Step 5: Solve for x
    x = 2,621,202,172.58/52,880.42
  6. Step 6: Final answer
    x = 49,568.48

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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.