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Finding the Fourth Proportional to 50,475, 69,656.94 and 28,120.44

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Solution

The fourth proportional to 50,475, 69,656.94 and 28,120.44 is: 38,807.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,475 : 69,656.94 = 28,120.44 : x
  2. Step 2: Convert to fraction form
    50,475/69,656.94 = 28,120.44/x
  3. Step 3: Cross multiply
    50,475x = 69,656.94 × 28,120.44
  4. Step 4: Simplify right side
    50,475x = 1,958,783,801.85
  5. Step 5: Solve for x
    x = 1,958,783,801.85/50,475
  6. Step 6: Final answer
    x = 38,807.01

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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.