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Finding the Fourth Proportional to 16,941.28, 25,409.76 and 7,457.44

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Solution

The fourth proportional to 16,941.28, 25,409.76 and 7,457.44 is: 11,185.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,941.28 : 25,409.76 = 7,457.44 : x
  2. Step 2: Convert to fraction form
    16,941.28/25,409.76 = 7,457.44/x
  3. Step 3: Cross multiply
    16,941.28x = 25,409.76 × 7,457.44
  4. Step 4: Simplify right side
    16,941.28x = 189,491,760.61
  5. Step 5: Solve for x
    x = 189,491,760.61/16,941.28
  6. Step 6: Final answer
    x = 11,185.21

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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.