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Finding the Fourth Proportional to 54,316.70, 81,483.15 and 19,253.60

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Solution

The fourth proportional to 54,316.70, 81,483.15 and 19,253.60 is: 28,883.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,316.70 : 81,483.15 = 19,253.60 : x
  2. Step 2: Convert to fraction form
    54,316.70/81,483.15 = 19,253.60/x
  3. Step 3: Cross multiply
    54,316.70x = 81,483.15 × 19,253.60
  4. Step 4: Simplify right side
    54,316.70x = 1,568,843,976.84
  5. Step 5: Solve for x
    x = 1,568,843,976.84/54,316.70
  6. Step 6: Final answer
    x = 28,883.27

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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.