Home / 49,885.82-74,828.51-12,445.84

Finding the Fourth Proportional to 49,885.82, 74,828.51 and 12,445.84

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Solution

The fourth proportional to 49,885.82, 74,828.51 and 12,445.84 is: 18,668.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,885.82 : 74,828.51 = 12,445.84 : x
  2. Step 2: Convert to fraction form
    49,885.82/74,828.51 = 12,445.84/x
  3. Step 3: Cross multiply
    49,885.82x = 74,828.51 × 12,445.84
  4. Step 4: Simplify right side
    49,885.82x = 931,303,662.90
  5. Step 5: Solve for x
    x = 931,303,662.90/49,885.82
  6. Step 6: Final answer
    x = 18,668.71

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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.