Home / 49,954.89-74,930.58-12,515.28

Finding the Fourth Proportional to 49,954.89, 74,930.58 and 12,515.28

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Solution

The fourth proportional to 49,954.89, 74,930.58 and 12,515.28 is: 18,772.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,954.89 : 74,930.58 = 12,515.28 : x
  2. Step 2: Convert to fraction form
    49,954.89/74,930.58 = 12,515.28/x
  3. Step 3: Cross multiply
    49,954.89x = 74,930.58 × 12,515.28
  4. Step 4: Simplify right side
    49,954.89x = 937,777,189.26
  5. Step 5: Solve for x
    x = 937,777,189.26/49,954.89
  6. Step 6: Final answer
    x = 18,772.48

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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.