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Finding the Fourth Proportional to 50,872.95, 70,130.93 and 35,719.47

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Solution

The fourth proportional to 50,872.95, 70,130.93 and 35,719.47 is: 49,241.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,872.95 : 70,130.93 = 35,719.47 : x
  2. Step 2: Convert to fraction form
    50,872.95/70,130.93 = 35,719.47/x
  3. Step 3: Cross multiply
    50,872.95x = 70,130.93 × 35,719.47
  4. Step 4: Simplify right side
    50,872.95x = 2,505,039,471.61
  5. Step 5: Solve for x
    x = 2,505,039,471.61/50,872.95
  6. Step 6: Final answer
    x = 49,241.09

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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.