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Finding the Fourth Proportional to 23,102.70, 34,605.45 and 19,214.70

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Solution

The fourth proportional to 23,102.70, 34,605.45 and 19,214.70 is: 28,781.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,102.70 : 34,605.45 = 19,214.70 : x
  2. Step 2: Convert to fraction form
    23,102.70/34,605.45 = 19,214.70/x
  3. Step 3: Cross multiply
    23,102.70x = 34,605.45 × 19,214.70
  4. Step 4: Simplify right side
    23,102.70x = 664,933,340.12
  5. Step 5: Solve for x
    x = 664,933,340.12/23,102.70
  6. Step 6: Final answer
    x = 28,781.63

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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.