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Finding the Fourth Proportional to 57,814.62, 86,727.69 and 15,695.39

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Solution

The fourth proportional to 57,814.62, 86,727.69 and 15,695.39 is: 23,544.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,814.62 : 86,727.69 = 15,695.39 : x
  2. Step 2: Convert to fraction form
    57,814.62/86,727.69 = 15,695.39/x
  3. Step 3: Cross multiply
    57,814.62x = 86,727.69 × 15,695.39
  4. Step 4: Simplify right side
    57,814.62x = 1,361,224,484.71
  5. Step 5: Solve for x
    x = 1,361,224,484.71/57,814.62
  6. Step 6: Final answer
    x = 23,544.64

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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.