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Finding the Fourth Proportional to 77,946, 107,576.01 and 43,961.46

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Solution

The fourth proportional to 77,946, 107,576.01 and 43,961.46 is: 60,672.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,946 : 107,576.01 = 43,961.46 : x
  2. Step 2: Convert to fraction form
    77,946/107,576.01 = 43,961.46/x
  3. Step 3: Cross multiply
    77,946x = 107,576.01 × 43,961.46
  4. Step 4: Simplify right side
    77,946x = 4,729,198,460.57
  5. Step 5: Solve for x
    x = 4,729,198,460.57/77,946
  6. Step 6: Final answer
    x = 60,672.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.