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Finding the Fourth Proportional to 53,559, 73,880.64 and 33,406.20

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Solution

The fourth proportional to 53,559, 73,880.64 and 33,406.20 is: 46,081.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,559 : 73,880.64 = 33,406.20 : x
  2. Step 2: Convert to fraction form
    53,559/73,880.64 = 33,406.20/x
  3. Step 3: Cross multiply
    53,559x = 73,880.64 × 33,406.20
  4. Step 4: Simplify right side
    53,559x = 2,468,071,435.97
  5. Step 5: Solve for x
    x = 2,468,071,435.97/53,559
  6. Step 6: Final answer
    x = 46,081.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.