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Finding the Fourth Proportional to 23,348.70, 34,986.60 and 19,630.80

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Solution

The fourth proportional to 23,348.70, 34,986.60 and 19,630.80 is: 29,415.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,348.70 : 34,986.60 = 19,630.80 : x
  2. Step 2: Convert to fraction form
    23,348.70/34,986.60 = 19,630.80/x
  3. Step 3: Cross multiply
    23,348.70x = 34,986.60 × 19,630.80
  4. Step 4: Simplify right side
    23,348.70x = 686,814,947.28
  5. Step 5: Solve for x
    x = 686,814,947.28/23,348.70
  6. Step 6: Final answer
    x = 29,415.55

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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.