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Finding the Fourth Proportional to 7,859.70, 10,846.34 and 4,322.84

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Solution

The fourth proportional to 7,859.70, 10,846.34 and 4,322.84 is: 5,965.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,859.70 : 10,846.34 = 4,322.84 : x
  2. Step 2: Convert to fraction form
    7,859.70/10,846.34 = 4,322.84/x
  3. Step 3: Cross multiply
    7,859.70x = 10,846.34 × 4,322.84
  4. Step 4: Simplify right side
    7,859.70x = 46,886,992.41
  5. Step 5: Solve for x
    x = 46,886,992.41/7,859.70
  6. Step 6: Final answer
    x = 5,965.49

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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.