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Finding the Fourth Proportional to 50,911.56, 70,255.51 and 28,250.28

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Solution

The fourth proportional to 50,911.56, 70,255.51 and 28,250.28 is: 38,984.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,911.56 : 70,255.51 = 28,250.28 : x
  2. Step 2: Convert to fraction form
    50,911.56/70,255.51 = 28,250.28/x
  3. Step 3: Cross multiply
    50,911.56x = 70,255.51 × 28,250.28
  4. Step 4: Simplify right side
    50,911.56x = 1,984,737,829.04
  5. Step 5: Solve for x
    x = 1,984,737,829.04/50,911.56
  6. Step 6: Final answer
    x = 38,984.03

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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.