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Finding the Fourth Proportional to 71,310.44, 98,408.06 and 38,604.76

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Solution

The fourth proportional to 71,310.44, 98,408.06 and 38,604.76 is: 53,274.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,310.44 : 98,408.06 = 38,604.76 : x
  2. Step 2: Convert to fraction form
    71,310.44/98,408.06 = 38,604.76/x
  3. Step 3: Cross multiply
    71,310.44x = 98,408.06 × 38,604.76
  4. Step 4: Simplify right side
    71,310.44x = 3,799,019,538.37
  5. Step 5: Solve for x
    x = 3,799,019,538.37/71,310.44
  6. Step 6: Final answer
    x = 53,274.38

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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.