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Finding the Fourth Proportional to 5,645.16, 8,472.94 and 2,873.82

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Solution

The fourth proportional to 5,645.16, 8,472.94 and 2,873.82 is: 4,313.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,645.16 : 8,472.94 = 2,873.82 : x
  2. Step 2: Convert to fraction form
    5,645.16/8,472.94 = 2,873.82/x
  3. Step 3: Cross multiply
    5,645.16x = 8,472.94 × 2,873.82
  4. Step 4: Simplify right side
    5,645.16x = 24,349,662.07
  5. Step 5: Solve for x
    x = 24,349,662.07/5,645.16
  6. Step 6: Final answer
    x = 4,313.37

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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.