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Finding the Fourth Proportional to 57,433.87, 86,152.43 and 15,880.87

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Solution

The fourth proportional to 57,433.87, 86,152.43 and 15,880.87 is: 23,821.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,433.87 : 86,152.43 = 15,880.87 : x
  2. Step 2: Convert to fraction form
    57,433.87/86,152.43 = 15,880.87/x
  3. Step 3: Cross multiply
    57,433.87x = 86,152.43 × 15,880.87
  4. Step 4: Simplify right side
    57,433.87x = 1,368,175,541.01
  5. Step 5: Solve for x
    x = 1,368,175,541.01/57,433.87
  6. Step 6: Final answer
    x = 23,821.75

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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.