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Finding the Fourth Proportional to 33,966.39, 46,866.63 and 20,538.21

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Solution

The fourth proportional to 33,966.39, 46,866.63 and 20,538.21 is: 28,338.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,966.39 : 46,866.63 = 20,538.21 : x
  2. Step 2: Convert to fraction form
    33,966.39/46,866.63 = 20,538.21/x
  3. Step 3: Cross multiply
    33,966.39x = 46,866.63 × 20,538.21
  4. Step 4: Simplify right side
    33,966.39x = 962,556,688.93
  5. Step 5: Solve for x
    x = 962,556,688.93/33,966.39
  6. Step 6: Final answer
    x = 28,338.50

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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.