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Finding the Fourth Proportional to 65,245.55, 97,882.92 and 20,874.96

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Solution

The fourth proportional to 65,245.55, 97,882.92 and 20,874.96 is: 31,317.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,245.55 : 97,882.92 = 20,874.96 : x
  2. Step 2: Convert to fraction form
    65,245.55/97,882.92 = 20,874.96/x
  3. Step 3: Cross multiply
    65,245.55x = 97,882.92 × 20,874.96
  4. Step 4: Simplify right side
    65,245.55x = 2,043,302,039.68
  5. Step 5: Solve for x
    x = 2,043,302,039.68/65,245.55
  6. Step 6: Final answer
    x = 31,317.11

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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.