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Finding the Fourth Proportional to 57,086.94, 78,855.28 and 43,822.12

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Solution

The fourth proportional to 57,086.94, 78,855.28 and 43,822.12 is: 60,532.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,086.94 : 78,855.28 = 43,822.12 : x
  2. Step 2: Convert to fraction form
    57,086.94/78,855.28 = 43,822.12/x
  3. Step 3: Cross multiply
    57,086.94x = 78,855.28 × 43,822.12
  4. Step 4: Simplify right side
    57,086.94x = 3,455,605,542.79
  5. Step 5: Solve for x
    x = 3,455,605,542.79/57,086.94
  6. Step 6: Final answer
    x = 60,532.33

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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.