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Finding the Fourth Proportional to 65,107.16, 89,850.30 and 36,811.16

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Solution

The fourth proportional to 65,107.16, 89,850.30 and 36,811.16 is: 50,800.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,107.16 : 89,850.30 = 36,811.16 : x
  2. Step 2: Convert to fraction form
    65,107.16/89,850.30 = 36,811.16/x
  3. Step 3: Cross multiply
    65,107.16x = 89,850.30 × 36,811.16
  4. Step 4: Simplify right side
    65,107.16x = 3,307,493,769.35
  5. Step 5: Solve for x
    x = 3,307,493,769.35/65,107.16
  6. Step 6: Final answer
    x = 50,800.77

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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.