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Finding the Fourth Proportional to 29,443.80, 44,136.90 and 11,890.20

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Solution

The fourth proportional to 29,443.80, 44,136.90 and 11,890.20 is: 17,823.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,443.80 : 44,136.90 = 11,890.20 : x
  2. Step 2: Convert to fraction form
    29,443.80/44,136.90 = 11,890.20/x
  3. Step 3: Cross multiply
    29,443.80x = 44,136.90 × 11,890.20
  4. Step 4: Simplify right side
    29,443.80x = 524,796,568.38
  5. Step 5: Solve for x
    x = 524,796,568.38/29,443.80
  6. Step 6: Final answer
    x = 17,823.67

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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.