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Finding the Fourth Proportional to 30,348.60, 45,522.90 and 17,226.60

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Solution

The fourth proportional to 30,348.60, 45,522.90 and 17,226.60 is: 25,839.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,348.60 : 45,522.90 = 17,226.60 : x
  2. Step 2: Convert to fraction form
    30,348.60/45,522.90 = 17,226.60/x
  3. Step 3: Cross multiply
    30,348.60x = 45,522.90 × 17,226.60
  4. Step 4: Simplify right side
    30,348.60x = 784,204,789.14
  5. Step 5: Solve for x
    x = 784,204,789.14/30,348.60
  6. Step 6: Final answer
    x = 25,839.90

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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.