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Finding the Fourth Proportional to 51,491.70, 77,237.55 and 23,789.70

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Solution

The fourth proportional to 51,491.70, 77,237.55 and 23,789.70 is: 35,684.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,491.70 : 77,237.55 = 23,789.70 : x
  2. Step 2: Convert to fraction form
    51,491.70/77,237.55 = 23,789.70/x
  3. Step 3: Cross multiply
    51,491.70x = 77,237.55 × 23,789.70
  4. Step 4: Simplify right side
    51,491.70x = 1,837,458,143.24
  5. Step 5: Solve for x
    x = 1,837,458,143.24/51,491.70
  6. Step 6: Final answer
    x = 35,684.55

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Similar ratio
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1.5x scale

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.