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Finding the Fourth Proportional to 18,449.67, 25,457.97 and 10,491.01

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Solution

The fourth proportional to 18,449.67, 25,457.97 and 10,491.01 is: 14,476.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,449.67 : 25,457.97 = 10,491.01 : x
  2. Step 2: Convert to fraction form
    18,449.67/25,457.97 = 10,491.01/x
  3. Step 3: Cross multiply
    18,449.67x = 25,457.97 × 10,491.01
  4. Step 4: Simplify right side
    18,449.67x = 267,079,817.85
  5. Step 5: Solve for x
    x = 267,079,817.85/18,449.67
  6. Step 6: Final answer
    x = 14,476.13

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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.