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Finding the Fourth Proportional to 50,855.66, 70,178.03 and 28,193.31

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Solution

The fourth proportional to 50,855.66, 70,178.03 and 28,193.31 is: 38,905.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,855.66 : 70,178.03 = 28,193.31 : x
  2. Step 2: Convert to fraction form
    50,855.66/70,178.03 = 28,193.31/x
  3. Step 3: Cross multiply
    50,855.66x = 70,178.03 × 28,193.31
  4. Step 4: Simplify right side
    50,855.66x = 1,978,550,814.01
  5. Step 5: Solve for x
    x = 1,978,550,814.01/50,855.66
  6. Step 6: Final answer
    x = 38,905.23

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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.