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Finding the Fourth Proportional to 19,292.77, 28,919.43 and 13,053.44

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Solution

The fourth proportional to 19,292.77, 28,919.43 and 13,053.44 is: 19,566.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,292.77 : 28,919.43 = 13,053.44 : x
  2. Step 2: Convert to fraction form
    19,292.77/28,919.43 = 13,053.44/x
  3. Step 3: Cross multiply
    19,292.77x = 28,919.43 × 13,053.44
  4. Step 4: Simplify right side
    19,292.77x = 377,498,121.91
  5. Step 5: Solve for x
    x = 377,498,121.91/19,292.77
  6. Step 6: Final answer
    x = 19,566.81

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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.