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Finding the Fourth Proportional to 19,604.20, 29,418.90 and 10,845.40

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Solution

The fourth proportional to 19,604.20, 29,418.90 and 10,845.40 is: 16,275.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,604.20 : 29,418.90 = 10,845.40 : x
  2. Step 2: Convert to fraction form
    19,604.20/29,418.90 = 10,845.40/x
  3. Step 3: Cross multiply
    19,604.20x = 29,418.90 × 10,845.40
  4. Step 4: Simplify right side
    19,604.20x = 319,059,738.06
  5. Step 5: Solve for x
    x = 319,059,738.06/19,604.20
  6. Step 6: Final answer
    x = 16,275.07

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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.