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Finding the Fourth Proportional to 30,882.96, 46,304.46 and 20,321.01

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Solution

The fourth proportional to 30,882.96, 46,304.46 and 20,321.01 is: 30,468.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,882.96 : 46,304.46 = 20,321.01 : x
  2. Step 2: Convert to fraction form
    30,882.96/46,304.46 = 20,321.01/x
  3. Step 3: Cross multiply
    30,882.96x = 46,304.46 × 20,321.01
  4. Step 4: Simplify right side
    30,882.96x = 940,953,394.70
  5. Step 5: Solve for x
    x = 940,953,394.70/30,882.96
  6. Step 6: Final answer
    x = 30,468.37

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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.