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Finding the Fourth Proportional to 54,078.94, 81,112.02 and 16,638.94

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Solution

The fourth proportional to 54,078.94, 81,112.02 and 16,638.94 is: 24,956.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,078.94 : 81,112.02 = 16,638.94 : x
  2. Step 2: Convert to fraction form
    54,078.94/81,112.02 = 16,638.94/x
  3. Step 3: Cross multiply
    54,078.94x = 81,112.02 × 16,638.94
  4. Step 4: Simplify right side
    54,078.94x = 1,349,618,034.06
  5. Step 5: Solve for x
    x = 1,349,618,034.06/54,078.94
  6. Step 6: Final answer
    x = 24,956.44

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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.