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Finding the Fourth Proportional to 54,361.84, 81,542.04 and 14,918.92

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Solution

The fourth proportional to 54,361.84, 81,542.04 and 14,918.92 is: 22,378.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,361.84 : 81,542.04 = 14,918.92 : x
  2. Step 2: Convert to fraction form
    54,361.84/81,542.04 = 14,918.92/x
  3. Step 3: Cross multiply
    54,361.84x = 81,542.04 × 14,918.92
  4. Step 4: Simplify right side
    54,361.84x = 1,216,519,171.40
  5. Step 5: Solve for x
    x = 1,216,519,171.40/54,361.84
  6. Step 6: Final answer
    x = 22,378.18

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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.