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Finding the Fourth Proportional to 57,683.70, 86,525.55 and 47,963.70

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Solution

The fourth proportional to 57,683.70, 86,525.55 and 47,963.70 is: 71,945.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,683.70 : 86,525.55 = 47,963.70 : x
  2. Step 2: Convert to fraction form
    57,683.70/86,525.55 = 47,963.70/x
  3. Step 3: Cross multiply
    57,683.70x = 86,525.55 × 47,963.70
  4. Step 4: Simplify right side
    57,683.70x = 4,150,085,522.54
  5. Step 5: Solve for x
    x = 4,150,085,522.54/57,683.70
  6. Step 6: Final answer
    x = 71,945.55

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Similar ratio
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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.