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Finding the Fourth Proportional to 50,697.57, 69,959.73 and 28,035.70

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Solution

The fourth proportional to 50,697.57, 69,959.73 and 28,035.70 is: 38,687.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,697.57 : 69,959.73 = 28,035.70 : x
  2. Step 2: Convert to fraction form
    50,697.57/69,959.73 = 28,035.70/x
  3. Step 3: Cross multiply
    50,697.57x = 69,959.73 × 28,035.70
  4. Step 4: Simplify right side
    50,697.57x = 1,961,370,002.36
  5. Step 5: Solve for x
    x = 1,961,370,002.36/50,697.57
  6. Step 6: Final answer
    x = 38,687.65

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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.