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Finding the Fourth Proportional to 29,292.70, 40,427.95 and 17,960.20

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Solution

The fourth proportional to 29,292.70, 40,427.95 and 17,960.20 is: 24,787.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,292.70 : 40,427.95 = 17,960.20 : x
  2. Step 2: Convert to fraction form
    29,292.70/40,427.95 = 17,960.20/x
  3. Step 3: Cross multiply
    29,292.70x = 40,427.95 × 17,960.20
  4. Step 4: Simplify right side
    29,292.70x = 726,093,910.35
  5. Step 5: Solve for x
    x = 726,093,910.35/29,292.70
  6. Step 6: Final answer
    x = 24,787.54

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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.