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Finding the Fourth Proportional to 14,186.44, 19,576.94 and 7,898.68

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Solution

The fourth proportional to 14,186.44, 19,576.94 and 7,898.68 is: 10,899.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,186.44 : 19,576.94 = 7,898.68 : x
  2. Step 2: Convert to fraction form
    14,186.44/19,576.94 = 7,898.68/x
  3. Step 3: Cross multiply
    14,186.44x = 19,576.94 × 7,898.68
  4. Step 4: Simplify right side
    14,186.44x = 154,631,984.44
  5. Step 5: Solve for x
    x = 154,631,984.44/14,186.44
  6. Step 6: Final answer
    x = 10,899.99

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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.