Home / 46,969.78-70,447.83-13,680.91

Finding the Fourth Proportional to 46,969.78, 70,447.83 and 13,680.91

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Solution

The fourth proportional to 46,969.78, 70,447.83 and 13,680.91 is: 20,519.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,969.78 : 70,447.83 = 13,680.91 : x
  2. Step 2: Convert to fraction form
    46,969.78/70,447.83 = 13,680.91/x
  3. Step 3: Cross multiply
    46,969.78x = 70,447.83 × 13,680.91
  4. Step 4: Simplify right side
    46,969.78x = 963,790,421.93
  5. Step 5: Solve for x
    x = 963,790,421.93/46,969.78
  6. Step 6: Final answer
    x = 20,519.37

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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.