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Finding the Fourth Proportional to 70,531.97, 105,755.63 and 33,100.25

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Solution

The fourth proportional to 70,531.97, 105,755.63 and 33,100.25 is: 49,630.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,531.97 : 105,755.63 = 33,100.25 : x
  2. Step 2: Convert to fraction form
    70,531.97/105,755.63 = 33,100.25/x
  3. Step 3: Cross multiply
    70,531.97x = 105,755.63 × 33,100.25
  4. Step 4: Simplify right side
    70,531.97x = 3,500,537,097.63
  5. Step 5: Solve for x
    x = 3,500,537,097.63/70,531.97
  6. Step 6: Final answer
    x = 49,630.51

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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.