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Finding the Fourth Proportional to 65,207.58, 89,988.60 and 36,912.66

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Solution

The fourth proportional to 65,207.58, 89,988.60 and 36,912.66 is: 50,940.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,207.58 : 89,988.60 = 36,912.66 : x
  2. Step 2: Convert to fraction form
    65,207.58/89,988.60 = 36,912.66/x
  3. Step 3: Cross multiply
    65,207.58x = 89,988.60 × 36,912.66
  4. Step 4: Simplify right side
    65,207.58x = 3,321,718,595.68
  5. Step 5: Solve for x
    x = 3,321,718,595.68/65,207.58
  6. Step 6: Final answer
    x = 50,940.68

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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.