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Finding the Fourth Proportional to 56,656.50, 84,986.55 and 17,213.96

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Solution

The fourth proportional to 56,656.50, 84,986.55 and 17,213.96 is: 25,821.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,656.50 : 84,986.55 = 17,213.96 : x
  2. Step 2: Convert to fraction form
    56,656.50/84,986.55 = 17,213.96/x
  3. Step 3: Cross multiply
    56,656.50x = 84,986.55 × 17,213.96
  4. Step 4: Simplify right side
    56,656.50x = 1,462,954,647.31
  5. Step 5: Solve for x
    x = 1,462,954,647.31/56,656.50
  6. Step 6: Final answer
    x = 25,821.48

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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.