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Finding the Fourth Proportional to 57,410.62, 86,117.56 and 15,857.62

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Solution

The fourth proportional to 57,410.62, 86,117.56 and 15,857.62 is: 23,786.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,410.62 : 86,117.56 = 15,857.62 : x
  2. Step 2: Convert to fraction form
    57,410.62/86,117.56 = 15,857.62/x
  3. Step 3: Cross multiply
    57,410.62x = 86,117.56 × 15,857.62
  4. Step 4: Simplify right side
    57,410.62x = 1,365,619,541.81
  5. Step 5: Solve for x
    x = 1,365,619,541.81/57,410.62
  6. Step 6: Final answer
    x = 23,786.88

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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.