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Finding the Fourth Proportional to 56,304.44, 84,468.70 and 20,765.86

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Solution

The fourth proportional to 56,304.44, 84,468.70 and 20,765.86 is: 31,153.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,304.44 : 84,468.70 = 20,765.86 : x
  2. Step 2: Convert to fraction form
    56,304.44/84,468.70 = 20,765.86/x
  3. Step 3: Cross multiply
    56,304.44x = 84,468.70 × 20,765.86
  4. Step 4: Simplify right side
    56,304.44x = 1,754,065,198.58
  5. Step 5: Solve for x
    x = 1,754,065,198.58/56,304.44
  6. Step 6: Final answer
    x = 31,153.23

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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.