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Finding the Fourth Proportional to 50,969.55, 76,389.66 and 28,795.40

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Solution

The fourth proportional to 50,969.55, 76,389.66 and 28,795.40 is: 43,156.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,969.55 : 76,389.66 = 28,795.40 : x
  2. Step 2: Convert to fraction form
    50,969.55/76,389.66 = 28,795.40/x
  3. Step 3: Cross multiply
    50,969.55x = 76,389.66 × 28,795.40
  4. Step 4: Simplify right side
    50,969.55x = 2,199,670,433.62
  5. Step 5: Solve for x
    x = 2,199,670,433.62/50,969.55
  6. Step 6: Final answer
    x = 43,156.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.