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Finding the Fourth Proportional to 36,067.20, 49,713.12 and 28,913.28

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Solution

The fourth proportional to 36,067.20, 49,713.12 and 28,913.28 is: 39,852.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,067.20 : 49,713.12 = 28,913.28 : x
  2. Step 2: Convert to fraction form
    36,067.20/49,713.12 = 28,913.28/x
  3. Step 3: Cross multiply
    36,067.20x = 49,713.12 × 28,913.28
  4. Step 4: Simplify right side
    36,067.20x = 1,437,369,358.23
  5. Step 5: Solve for x
    x = 1,437,369,358.23/36,067.20
  6. Step 6: Final answer
    x = 39,852.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.