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Finding the Fourth Proportional to 57,313.05, 85,978.22 and 17,873.25

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Solution

The fourth proportional to 57,313.05, 85,978.22 and 17,873.25 is: 26,812.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,313.05 : 85,978.22 = 17,873.25 : x
  2. Step 2: Convert to fraction form
    57,313.05/85,978.22 = 17,873.25/x
  3. Step 3: Cross multiply
    57,313.05x = 85,978.22 × 17,873.25
  4. Step 4: Simplify right side
    57,313.05x = 1,536,710,131.25
  5. Step 5: Solve for x
    x = 1,536,710,131.25/57,313.05
  6. Step 6: Final answer
    x = 26,812.57

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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.