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Finding the Fourth Proportional to 48,573.55, 72,821.04 and 20,475.46

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Solution

The fourth proportional to 48,573.55, 72,821.04 and 20,475.46 is: 30,696.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,573.55 : 72,821.04 = 20,475.46 : x
  2. Step 2: Convert to fraction form
    48,573.55/72,821.04 = 20,475.46/x
  3. Step 3: Cross multiply
    48,573.55x = 72,821.04 × 20,475.46
  4. Step 4: Simplify right side
    48,573.55x = 1,491,044,291.68
  5. Step 5: Solve for x
    x = 1,491,044,291.68/48,573.55
  6. Step 6: Final answer
    x = 30,696.63

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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.