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Finding the Fourth Proportional to 50,388.88, 69,536.74 and 28,032.88

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Solution

The fourth proportional to 50,388.88, 69,536.74 and 28,032.88 is: 38,685.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,388.88 : 69,536.74 = 28,032.88 : x
  2. Step 2: Convert to fraction form
    50,388.88/69,536.74 = 28,032.88/x
  3. Step 3: Cross multiply
    50,388.88x = 69,536.74 × 28,032.88
  4. Step 4: Simplify right side
    50,388.88x = 1,949,315,088.01
  5. Step 5: Solve for x
    x = 1,949,315,088.01/50,388.88
  6. Step 6: Final answer
    x = 38,685.42

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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.