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Finding the Fourth Proportional to 57,728.37, 79,678.43 and 33,862.73

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Solution

The fourth proportional to 57,728.37, 79,678.43 and 33,862.73 is: 46,738.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,728.37 : 79,678.43 = 33,862.73 : x
  2. Step 2: Convert to fraction form
    57,728.37/79,678.43 = 33,862.73/x
  3. Step 3: Cross multiply
    57,728.37x = 79,678.43 × 33,862.73
  4. Step 4: Simplify right side
    57,728.37x = 2,698,128,793.40
  5. Step 5: Solve for x
    x = 2,698,128,793.40/57,728.37
  6. Step 6: Final answer
    x = 46,738.35

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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.