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Finding the Fourth Proportional to 70,596.44, 105,796.08 and 39,021.60

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Solution

The fourth proportional to 70,596.44, 105,796.08 and 39,021.60 is: 58,477.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,596.44 : 105,796.08 = 39,021.60 : x
  2. Step 2: Convert to fraction form
    70,596.44/105,796.08 = 39,021.60/x
  3. Step 3: Cross multiply
    70,596.44x = 105,796.08 × 39,021.60
  4. Step 4: Simplify right side
    70,596.44x = 4,128,332,315.33
  5. Step 5: Solve for x
    x = 4,128,332,315.33/70,596.44
  6. Step 6: Final answer
    x = 58,477.91

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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.