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Finding the Fourth Proportional to 52,954.92, 79,431.48 and 27,989.64

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Solution

The fourth proportional to 52,954.92, 79,431.48 and 27,989.64 is: 41,983.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,954.92 : 79,431.48 = 27,989.64 : x
  2. Step 2: Convert to fraction form
    52,954.92/79,431.48 = 27,989.64/x
  3. Step 3: Cross multiply
    52,954.92x = 79,431.48 × 27,989.64
  4. Step 4: Simplify right side
    52,954.92x = 2,223,258,529.87
  5. Step 5: Solve for x
    x = 2,223,258,529.87/52,954.92
  6. Step 6: Final answer
    x = 41,983.98

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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.