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Finding the Fourth Proportional to 54,369.60, 81,424.80 and 33,374.40

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Solution

The fourth proportional to 54,369.60, 81,424.80 and 33,374.40 is: 49,982.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,369.60 : 81,424.80 = 33,374.40 : x
  2. Step 2: Convert to fraction form
    54,369.60/81,424.80 = 33,374.40/x
  3. Step 3: Cross multiply
    54,369.60x = 81,424.80 × 33,374.40
  4. Step 4: Simplify right side
    54,369.60x = 2,717,503,845.12
  5. Step 5: Solve for x
    x = 2,717,503,845.12/54,369.60
  6. Step 6: Final answer
    x = 49,982.05

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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.