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Finding the Fourth Proportional to 80,783.40, 111,460.86 and 48,523.44

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Solution

The fourth proportional to 80,783.40, 111,460.86 and 48,523.44 is: 66,950.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,783.40 : 111,460.86 = 48,523.44 : x
  2. Step 2: Convert to fraction form
    80,783.40/111,460.86 = 48,523.44/x
  3. Step 3: Cross multiply
    80,783.40x = 111,460.86 × 48,523.44
  4. Step 4: Simplify right side
    80,783.40x = 5,408,464,352.56
  5. Step 5: Solve for x
    x = 5,408,464,352.56/80,783.40
  6. Step 6: Final answer
    x = 66,950.19

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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.