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Finding the Fourth Proportional to 55,153.96, 82,743.91 and 15,711.64

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Solution

The fourth proportional to 55,153.96, 82,743.91 and 15,711.64 is: 23,571.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,153.96 : 82,743.91 = 15,711.64 : x
  2. Step 2: Convert to fraction form
    55,153.96/82,743.91 = 15,711.64/x
  3. Step 3: Cross multiply
    55,153.96x = 82,743.91 × 15,711.64
  4. Step 4: Simplify right side
    55,153.96x = 1,300,042,526.11
  5. Step 5: Solve for x
    x = 1,300,042,526.11/55,153.96
  6. Step 6: Final answer
    x = 23,571.15

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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.