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Finding the Fourth Proportional to 34,771.67, 47,984.05 and 18,855.71

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Solution

The fourth proportional to 34,771.67, 47,984.05 and 18,855.71 is: 26,020.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,771.67 : 47,984.05 = 18,855.71 : x
  2. Step 2: Convert to fraction form
    34,771.67/47,984.05 = 18,855.71/x
  3. Step 3: Cross multiply
    34,771.67x = 47,984.05 × 18,855.71
  4. Step 4: Simplify right side
    34,771.67x = 904,773,331.43
  5. Step 5: Solve for x
    x = 904,773,331.43/34,771.67
  6. Step 6: Final answer
    x = 26,020.42

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1.5x scale

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.