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Finding the Fourth Proportional to 56,558.76, 84,811.50 and 20,995.44

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Solution

The fourth proportional to 56,558.76, 84,811.50 and 20,995.44 is: 31,483.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,558.76 : 84,811.50 = 20,995.44 : x
  2. Step 2: Convert to fraction form
    56,558.76/84,811.50 = 20,995.44/x
  3. Step 3: Cross multiply
    56,558.76x = 84,811.50 × 20,995.44
  4. Step 4: Simplify right side
    56,558.76x = 1,780,654,759.56
  5. Step 5: Solve for x
    x = 1,780,654,759.56/56,558.76
  6. Step 6: Final answer
    x = 31,483.27

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1.5x scale

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.