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Finding the Fourth Proportional to 64,697.67, 89,284.68 and 36,402.75

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Solution

The fourth proportional to 64,697.67, 89,284.68 and 36,402.75 is: 50,236.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,697.67 : 89,284.68 = 36,402.75 : x
  2. Step 2: Convert to fraction form
    64,697.67/89,284.68 = 36,402.75/x
  3. Step 3: Cross multiply
    64,697.67x = 89,284.68 × 36,402.75
  4. Step 4: Simplify right side
    64,697.67x = 3,250,207,884.87
  5. Step 5: Solve for x
    x = 3,250,207,884.87/64,697.67
  6. Step 6: Final answer
    x = 50,236.86

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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.