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Finding the Fourth Proportional to 50,808.44, 70,112.84 and 28,145.63

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Solution

The fourth proportional to 50,808.44, 70,112.84 and 28,145.63 is: 38,839.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,808.44 : 70,112.84 = 28,145.63 : x
  2. Step 2: Convert to fraction form
    50,808.44/70,112.84 = 28,145.63/x
  3. Step 3: Cross multiply
    50,808.44x = 70,112.84 × 28,145.63
  4. Step 4: Simplify right side
    50,808.44x = 1,973,369,561.60
  5. Step 5: Solve for x
    x = 1,973,369,561.60/50,808.44
  6. Step 6: Final answer
    x = 38,839.41

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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.