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Finding the Fourth Proportional to 45,761.76, 68,571.54 and 22,043.76

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Solution

The fourth proportional to 45,761.76, 68,571.54 and 22,043.76 is: 33,031.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,761.76 : 68,571.54 = 22,043.76 : x
  2. Step 2: Convert to fraction form
    45,761.76/68,571.54 = 22,043.76/x
  3. Step 3: Cross multiply
    45,761.76x = 68,571.54 × 22,043.76
  4. Step 4: Simplify right side
    45,761.76x = 1,511,574,570.59
  5. Step 5: Solve for x
    x = 1,511,574,570.59/45,761.76
  6. Step 6: Final answer
    x = 33,031.39

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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.