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Finding the Fourth Proportional to 80,638.81, 111,285.36 and 44,829.42

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Solution

The fourth proportional to 80,638.81, 111,285.36 and 44,829.42 is: 61,866.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,638.81 : 111,285.36 = 44,829.42 : x
  2. Step 2: Convert to fraction form
    80,638.81/111,285.36 = 44,829.42/x
  3. Step 3: Cross multiply
    80,638.81x = 111,285.36 × 44,829.42
  4. Step 4: Simplify right side
    80,638.81x = 4,988,858,351.95
  5. Step 5: Solve for x
    x = 4,988,858,351.95/80,638.81
  6. Step 6: Final answer
    x = 61,866.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.