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Finding the Fourth Proportional to 54,052.98, 81,075.47 and 18,992.98

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Solution

The fourth proportional to 54,052.98, 81,075.47 and 18,992.98 is: 28,488.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,052.98 : 81,075.47 = 18,992.98 : x
  2. Step 2: Convert to fraction form
    54,052.98/81,075.47 = 18,992.98/x
  3. Step 3: Cross multiply
    54,052.98x = 81,075.47 × 18,992.98
  4. Step 4: Simplify right side
    54,052.98x = 1,539,864,780.20
  5. Step 5: Solve for x
    x = 1,539,864,780.20/54,052.98
  6. Step 6: Final answer
    x = 28,488.06

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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.