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Finding the Fourth Proportional to 50,690.98, 69,953.16 and 28,334.98

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Solution

The fourth proportional to 50,690.98, 69,953.16 and 28,334.98 is: 39,102.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,690.98 : 69,953.16 = 28,334.98 : x
  2. Step 2: Convert to fraction form
    50,690.98/69,953.16 = 28,334.98/x
  3. Step 3: Cross multiply
    50,690.98x = 69,953.16 × 28,334.98
  4. Step 4: Simplify right side
    50,690.98x = 1,982,121,389.54
  5. Step 5: Solve for x
    x = 1,982,121,389.54/50,690.98
  6. Step 6: Final answer
    x = 39,102.05

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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.