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Finding the Fourth Proportional to 11,453.80, 17,180.70 and 11,300.20

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Solution

The fourth proportional to 11,453.80, 17,180.70 and 11,300.20 is: 16,950.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,453.80 : 17,180.70 = 11,300.20 : x
  2. Step 2: Convert to fraction form
    11,453.80/17,180.70 = 11,300.20/x
  3. Step 3: Cross multiply
    11,453.80x = 17,180.70 × 11,300.20
  4. Step 4: Simplify right side
    11,453.80x = 194,145,346.14
  5. Step 5: Solve for x
    x = 194,145,346.14/11,453.80
  6. Step 6: Final answer
    x = 16,950.30

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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.