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Finding the Fourth Proportional to 20,651.97, 30,973.08 and 7,323.84

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Solution

The fourth proportional to 20,651.97, 30,973.08 and 7,323.84 is: 10,984.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,651.97 : 30,973.08 = 7,323.84 : x
  2. Step 2: Convert to fraction form
    20,651.97/30,973.08 = 7,323.84/x
  3. Step 3: Cross multiply
    20,651.97x = 30,973.08 × 7,323.84
  4. Step 4: Simplify right side
    20,651.97x = 226,841,882.23
  5. Step 5: Solve for x
    x = 226,841,882.23/20,651.97
  6. Step 6: Final answer
    x = 10,984.03

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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.