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Finding the Fourth Proportional to 33,316.52, 45,978.81 and 19,169.06

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Solution

The fourth proportional to 33,316.52, 45,978.81 and 19,169.06 is: 26,454.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,316.52 : 45,978.81 = 19,169.06 : x
  2. Step 2: Convert to fraction form
    33,316.52/45,978.81 = 19,169.06/x
  3. Step 3: Cross multiply
    33,316.52x = 45,978.81 × 19,169.06
  4. Step 4: Simplify right side
    33,316.52x = 881,370,567.62
  5. Step 5: Solve for x
    x = 881,370,567.62/33,316.52
  6. Step 6: Final answer
    x = 26,454.46

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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.