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Finding the Fourth Proportional to 13,273.80, 19,910.70 and 12,064.20

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Solution

The fourth proportional to 13,273.80, 19,910.70 and 12,064.20 is: 18,096.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,273.80 : 19,910.70 = 12,064.20 : x
  2. Step 2: Convert to fraction form
    13,273.80/19,910.70 = 12,064.20/x
  3. Step 3: Cross multiply
    13,273.80x = 19,910.70 × 12,064.20
  4. Step 4: Simplify right side
    13,273.80x = 240,206,666.94
  5. Step 5: Solve for x
    x = 240,206,666.94/13,273.80
  6. Step 6: Final answer
    x = 18,096.30

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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.