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Finding the Fourth Proportional to 51,224.40, 76,879.80 and 23,187.60

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Solution

The fourth proportional to 51,224.40, 76,879.80 and 23,187.60 is: 34,800.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,224.40 : 76,879.80 = 23,187.60 : x
  2. Step 2: Convert to fraction form
    51,224.40/76,879.80 = 23,187.60/x
  3. Step 3: Cross multiply
    51,224.40x = 76,879.80 × 23,187.60
  4. Step 4: Simplify right side
    51,224.40x = 1,782,658,050.48
  5. Step 5: Solve for x
    x = 1,782,658,050.48/51,224.40
  6. Step 6: Final answer
    x = 34,800.96

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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.