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Finding the Fourth Proportional to 53,956.70, 80,935.05 and 17,020.70

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Solution

The fourth proportional to 53,956.70, 80,935.05 and 17,020.70 is: 25,531.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,956.70 : 80,935.05 = 17,020.70 : x
  2. Step 2: Convert to fraction form
    53,956.70/80,935.05 = 17,020.70/x
  3. Step 3: Cross multiply
    53,956.70x = 80,935.05 × 17,020.70
  4. Step 4: Simplify right side
    53,956.70x = 1,377,571,205.54
  5. Step 5: Solve for x
    x = 1,377,571,205.54/53,956.70
  6. Step 6: Final answer
    x = 25,531.05

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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.