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Finding the Fourth Proportional to 41,969.44, 62,978.48 and 15,673.20

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Solution

The fourth proportional to 41,969.44, 62,978.48 and 15,673.20 is: 23,518.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,969.44 : 62,978.48 = 15,673.20 : x
  2. Step 2: Convert to fraction form
    41,969.44/62,978.48 = 15,673.20/x
  3. Step 3: Cross multiply
    41,969.44x = 62,978.48 × 15,673.20
  4. Step 4: Simplify right side
    41,969.44x = 987,074,312.74
  5. Step 5: Solve for x
    x = 987,074,312.74/41,969.44
  6. Step 6: Final answer
    x = 23,518.88

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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.