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Finding the Fourth Proportional to 56,738.80, 85,108.20 and 23,447.80

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Solution

The fourth proportional to 56,738.80, 85,108.20 and 23,447.80 is: 35,171.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,738.80 : 85,108.20 = 23,447.80 : x
  2. Step 2: Convert to fraction form
    56,738.80/85,108.20 = 23,447.80/x
  3. Step 3: Cross multiply
    56,738.80x = 85,108.20 × 23,447.80
  4. Step 4: Simplify right side
    56,738.80x = 1,995,600,051.96
  5. Step 5: Solve for x
    x = 1,995,600,051.96/56,738.80
  6. Step 6: Final answer
    x = 35,171.70

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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.