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Finding the Fourth Proportional to 76,628.97, 105,732.14 and 44,791.71

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Solution

The fourth proportional to 76,628.97, 105,732.14 and 44,791.71 is: 61,803.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,628.97 : 105,732.14 = 44,791.71 : x
  2. Step 2: Convert to fraction form
    76,628.97/105,732.14 = 44,791.71/x
  3. Step 3: Cross multiply
    76,628.97x = 105,732.14 × 44,791.71
  4. Step 4: Simplify right side
    76,628.97x = 4,735,923,128.60
  5. Step 5: Solve for x
    x = 4,735,923,128.60/76,628.97
  6. Step 6: Final answer
    x = 61,803.30

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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.