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Finding the Fourth Proportional to 50,725.56, 70,000.56 and 28,369.56

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Solution

The fourth proportional to 50,725.56, 70,000.56 and 28,369.56 is: 39,149.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,725.56 : 70,000.56 = 28,369.56 : x
  2. Step 2: Convert to fraction form
    50,725.56/70,000.56 = 28,369.56/x
  3. Step 3: Cross multiply
    50,725.56x = 70,000.56 × 28,369.56
  4. Step 4: Simplify right side
    50,725.56x = 1,985,885,086.95
  5. Step 5: Solve for x
    x = 1,985,885,086.95/50,725.56
  6. Step 6: Final answer
    x = 39,149.59

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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.