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Finding the Fourth Proportional to 14,679.82, 20,257.83 and 7,965.46

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Solution

The fourth proportional to 14,679.82, 20,257.83 and 7,965.46 is: 10,992.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,679.82 : 20,257.83 = 7,965.46 : x
  2. Step 2: Convert to fraction form
    14,679.82/20,257.83 = 7,965.46/x
  3. Step 3: Cross multiply
    14,679.82x = 20,257.83 × 7,965.46
  4. Step 4: Simplify right side
    14,679.82x = 161,362,934.55
  5. Step 5: Solve for x
    x = 161,362,934.55/14,679.82
  6. Step 6: Final answer
    x = 10,992.16

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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.