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Finding the Fourth Proportional to 57,726.99, 86,598.63 and 18,287.19

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Solution

The fourth proportional to 57,726.99, 86,598.63 and 18,287.19 is: 27,433.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,726.99 : 86,598.63 = 18,287.19 : x
  2. Step 2: Convert to fraction form
    57,726.99/86,598.63 = 18,287.19/x
  3. Step 3: Cross multiply
    57,726.99x = 86,598.63 × 18,287.19
  4. Step 4: Simplify right side
    57,726.99x = 1,583,645,600.55
  5. Step 5: Solve for x
    x = 1,583,645,600.55/57,726.99
  6. Step 6: Final answer
    x = 27,433.37

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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.