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Finding the Fourth Proportional to 54,698.62, 82,047.94 and 13,145.62

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Solution

The fourth proportional to 54,698.62, 82,047.94 and 13,145.62 is: 19,718.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,698.62 : 82,047.94 = 13,145.62 : x
  2. Step 2: Convert to fraction form
    54,698.62/82,047.94 = 13,145.62/x
  3. Step 3: Cross multiply
    54,698.62x = 82,047.94 × 13,145.62
  4. Step 4: Simplify right side
    54,698.62x = 1,078,571,041.02
  5. Step 5: Solve for x
    x = 1,078,571,041.02/54,698.62
  6. Step 6: Final answer
    x = 19,718.43

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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.