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Finding the Fourth Proportional to 64,765.68, 89,383.08 and 37,906.62

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Solution

The fourth proportional to 64,765.68, 89,383.08 and 37,906.62 is: 52,314.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,765.68 : 89,383.08 = 37,906.62 : x
  2. Step 2: Convert to fraction form
    64,765.68/89,383.08 = 37,906.62/x
  3. Step 3: Cross multiply
    64,765.68x = 89,383.08 × 37,906.62
  4. Step 4: Simplify right side
    64,765.68x = 3,388,210,447.99
  5. Step 5: Solve for x
    x = 3,388,210,447.99/64,765.68
  6. Step 6: Final answer
    x = 52,314.91

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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.