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Finding the Fourth Proportional to 48,671.73, 73,012.80 and 20,594.64

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Solution

The fourth proportional to 48,671.73, 73,012.80 and 20,594.64 is: 30,894.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,671.73 : 73,012.80 = 20,594.64 : x
  2. Step 2: Convert to fraction form
    48,671.73/73,012.80 = 20,594.64/x
  3. Step 3: Cross multiply
    48,671.73x = 73,012.80 × 20,594.64
  4. Step 4: Simplify right side
    48,671.73x = 1,503,672,331.39
  5. Step 5: Solve for x
    x = 1,503,672,331.39/48,671.73
  6. Step 6: Final answer
    x = 30,894.16

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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.