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Finding the Fourth Proportional to 73,998.75, 110,946.63 and 31,866.19

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Solution

The fourth proportional to 73,998.75, 110,946.63 and 31,866.19 is: 47,777.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,998.75 : 110,946.63 = 31,866.19 : x
  2. Step 2: Convert to fraction form
    73,998.75/110,946.63 = 31,866.19/x
  3. Step 3: Cross multiply
    73,998.75x = 110,946.63 × 31,866.19
  4. Step 4: Simplify right side
    73,998.75x = 3,535,446,391.44
  5. Step 5: Solve for x
    x = 3,535,446,391.44/73,998.75
  6. Step 6: Final answer
    x = 47,777.11

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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.