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Finding the Fourth Proportional to 51,289.80, 76,934.70 and 41,958.60

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Solution

The fourth proportional to 51,289.80, 76,934.70 and 41,958.60 is: 62,937.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,289.80 : 76,934.70 = 41,958.60 : x
  2. Step 2: Convert to fraction form
    51,289.80/76,934.70 = 41,958.60/x
  3. Step 3: Cross multiply
    51,289.80x = 76,934.70 × 41,958.60
  4. Step 4: Simplify right side
    51,289.80x = 3,228,072,303.42
  5. Step 5: Solve for x
    x = 3,228,072,303.42/51,289.80
  6. Step 6: Final answer
    x = 62,937.90

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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.