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Finding the Fourth Proportional to 7,859.44, 10,845.63 and 4,321.97

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Solution

The fourth proportional to 7,859.44, 10,845.63 and 4,321.97 is: 5,964.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,859.44 : 10,845.63 = 4,321.97 : x
  2. Step 2: Convert to fraction form
    7,859.44/10,845.63 = 4,321.97/x
  3. Step 3: Cross multiply
    7,859.44x = 10,845.63 × 4,321.97
  4. Step 4: Simplify right side
    7,859.44x = 46,874,487.49
  5. Step 5: Solve for x
    x = 46,874,487.49/7,859.44
  6. Step 6: Final answer
    x = 5,964.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.