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Finding the Fourth Proportional to 18,343.66, 27,515.49 and 9,576.53

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Solution

The fourth proportional to 18,343.66, 27,515.49 and 9,576.53 is: 14,364.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,343.66 : 27,515.49 = 9,576.53 : x
  2. Step 2: Convert to fraction form
    18,343.66/27,515.49 = 9,576.53/x
  3. Step 3: Cross multiply
    18,343.66x = 27,515.49 × 9,576.53
  4. Step 4: Simplify right side
    18,343.66x = 263,502,777.87
  5. Step 5: Solve for x
    x = 263,502,777.87/18,343.66
  6. Step 6: Final answer
    x = 14,364.79

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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.