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Finding the Fourth Proportional to 23,191.30, 34,766.70 and 15,771.70

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Solution

The fourth proportional to 23,191.30, 34,766.70 and 15,771.70 is: 23,643.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,191.30 : 34,766.70 = 15,771.70 : x
  2. Step 2: Convert to fraction form
    23,191.30/34,766.70 = 15,771.70/x
  3. Step 3: Cross multiply
    23,191.30x = 34,766.70 × 15,771.70
  4. Step 4: Simplify right side
    23,191.30x = 548,329,962.39
  5. Step 5: Solve for x
    x = 548,329,962.39/23,191.30
  6. Step 6: Final answer
    x = 23,643.78

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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.