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Finding the Fourth Proportional to 19,927.26, 27,300.47 and 19,179.90

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Solution

The fourth proportional to 19,927.26, 27,300.47 and 19,179.90 is: 26,276.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,927.26 : 27,300.47 = 19,179.90 : x
  2. Step 2: Convert to fraction form
    19,927.26/27,300.47 = 19,179.90/x
  3. Step 3: Cross multiply
    19,927.26x = 27,300.47 × 19,179.90
  4. Step 4: Simplify right side
    19,927.26x = 523,620,188.65
  5. Step 5: Solve for x
    x = 523,620,188.65/19,927.26
  6. Step 6: Final answer
    x = 26,276.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.