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Finding the Fourth Proportional to 56,469.65, 84,712.29 and 19,040.43

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Solution

The fourth proportional to 56,469.65, 84,712.29 and 19,040.43 is: 28,563.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,469.65 : 84,712.29 = 19,040.43 : x
  2. Step 2: Convert to fraction form
    56,469.65/84,712.29 = 19,040.43/x
  3. Step 3: Cross multiply
    56,469.65x = 84,712.29 × 19,040.43
  4. Step 4: Simplify right side
    56,469.65x = 1,612,958,332.68
  5. Step 5: Solve for x
    x = 1,612,958,332.68/56,469.65
  6. Step 6: Final answer
    x = 28,563.28

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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.