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Finding the Fourth Proportional to 50,699.94, 69,959.78 and 28,035.88

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Solution

The fourth proportional to 50,699.94, 69,959.78 and 28,035.88 is: 38,686.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,699.94 : 69,959.78 = 28,035.88 : x
  2. Step 2: Convert to fraction form
    50,699.94/69,959.78 = 28,035.88/x
  3. Step 3: Cross multiply
    50,699.94x = 69,959.78 × 28,035.88
  4. Step 4: Simplify right side
    50,699.94x = 1,961,383,996.91
  5. Step 5: Solve for x
    x = 1,961,383,996.91/50,699.94
  6. Step 6: Final answer
    x = 38,686.12

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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.