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Finding the Fourth Proportional to 50,455.44, 69,628.86 and 28,946.12

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Solution

The fourth proportional to 50,455.44, 69,628.86 and 28,946.12 is: 39,945.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,455.44 : 69,628.86 = 28,946.12 : x
  2. Step 2: Convert to fraction form
    50,455.44/69,628.86 = 28,946.12/x
  3. Step 3: Cross multiply
    50,455.44x = 69,628.86 × 28,946.12
  4. Step 4: Simplify right side
    50,455.44x = 2,015,484,988.88
  5. Step 5: Solve for x
    x = 2,015,484,988.88/50,455.44
  6. Step 6: Final answer
    x = 39,945.84

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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.