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Finding the Fourth Proportional to 3,512.97, 5,265.88 and 1,953.65

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Solution

The fourth proportional to 3,512.97, 5,265.88 and 1,953.65 is: 2,928.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,512.97 : 5,265.88 = 1,953.65 : x
  2. Step 2: Convert to fraction form
    3,512.97/5,265.88 = 1,953.65/x
  3. Step 3: Cross multiply
    3,512.97x = 5,265.88 × 1,953.65
  4. Step 4: Simplify right side
    3,512.97x = 10,287,694.74
  5. Step 5: Solve for x
    x = 10,287,694.74/3,512.97
  6. Step 6: Final answer
    x = 2,928.49

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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.