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Finding the Fourth Proportional to 50,737.56, 70,017.12 and 28,381.56

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Solution

The fourth proportional to 50,737.56, 70,017.12 and 28,381.56 is: 39,166.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,737.56 : 70,017.12 = 28,381.56 : x
  2. Step 2: Convert to fraction form
    50,737.56/70,017.12 = 28,381.56/x
  3. Step 3: Cross multiply
    50,737.56x = 70,017.12 × 28,381.56
  4. Step 4: Simplify right side
    50,737.56x = 1,987,195,092.31
  5. Step 5: Solve for x
    x = 1,987,195,092.31/50,737.56
  6. Step 6: Final answer
    x = 39,166.15

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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.