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Finding the Fourth Proportional to 14,682.85, 20,262.35 and 7,968.48

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Solution

The fourth proportional to 14,682.85, 20,262.35 and 7,968.48 is: 10,996.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,682.85 : 20,262.35 = 7,968.48 : x
  2. Step 2: Convert to fraction form
    14,682.85/20,262.35 = 7,968.48/x
  3. Step 3: Cross multiply
    14,682.85x = 20,262.35 × 7,968.48
  4. Step 4: Simplify right side
    14,682.85x = 161,460,113.56
  5. Step 5: Solve for x
    x = 161,460,113.56/14,682.85
  6. Step 6: Final answer
    x = 10,996.51

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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.