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Finding the Fourth Proportional to 70,443.97, 105,665.96 and 17,853.73

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Solution

The fourth proportional to 70,443.97, 105,665.96 and 17,853.73 is: 26,780.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,443.97 : 105,665.96 = 17,853.73 : x
  2. Step 2: Convert to fraction form
    70,443.97/105,665.96 = 17,853.73/x
  3. Step 3: Cross multiply
    70,443.97x = 105,665.96 × 17,853.73
  4. Step 4: Simplify right side
    70,443.97x = 1,886,531,520.03
  5. Step 5: Solve for x
    x = 1,886,531,520.03/70,443.97
  6. Step 6: Final answer
    x = 26,780.60

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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.