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Finding the Fourth Proportional to 60,941.34, 91,414.01 and 20,959.92

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Solution

The fourth proportional to 60,941.34, 91,414.01 and 20,959.92 is: 31,440.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,941.34 : 91,414.01 = 20,959.92 : x
  2. Step 2: Convert to fraction form
    60,941.34/91,414.01 = 20,959.92/x
  3. Step 3: Cross multiply
    60,941.34x = 91,414.01 × 20,959.92
  4. Step 4: Simplify right side
    60,941.34x = 1,916,030,388.88
  5. Step 5: Solve for x
    x = 1,916,030,388.88/60,941.34
  6. Step 6: Final answer
    x = 31,440.57

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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.