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Finding the Fourth Proportional to 56,395.26, 84,598.60 and 20,865.96

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Solution

The fourth proportional to 56,395.26, 84,598.60 and 20,865.96 is: 31,301.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,395.26 : 84,598.60 = 20,865.96 : x
  2. Step 2: Convert to fraction form
    56,395.26/84,598.60 = 20,865.96/x
  3. Step 3: Cross multiply
    56,395.26x = 84,598.60 × 20,865.96
  4. Step 4: Simplify right side
    56,395.26x = 1,765,231,003.66
  5. Step 5: Solve for x
    x = 1,765,231,003.66/56,395.26
  6. Step 6: Final answer
    x = 31,301.05

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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.