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Finding the Fourth Proportional to 22,893.80, 34,308.30 and 20,107.40

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Solution

The fourth proportional to 22,893.80, 34,308.30 and 20,107.40 is: 30,132.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,893.80 : 34,308.30 = 20,107.40 : x
  2. Step 2: Convert to fraction form
    22,893.80/34,308.30 = 20,107.40/x
  3. Step 3: Cross multiply
    22,893.80x = 34,308.30 × 20,107.40
  4. Step 4: Simplify right side
    22,893.80x = 689,850,711.42
  5. Step 5: Solve for x
    x = 689,850,711.42/22,893.80
  6. Step 6: Final answer
    x = 30,132.64

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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.