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Finding the Fourth Proportional to 65,375.64, 90,205.02 and 37,073.88

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Solution

The fourth proportional to 65,375.64, 90,205.02 and 37,073.88 is: 51,154.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,375.64 : 90,205.02 = 37,073.88 : x
  2. Step 2: Convert to fraction form
    65,375.64/90,205.02 = 37,073.88/x
  3. Step 3: Cross multiply
    65,375.64x = 90,205.02 × 37,073.88
  4. Step 4: Simplify right side
    65,375.64x = 3,344,250,086.88
  5. Step 5: Solve for x
    x = 3,344,250,086.88/65,375.64
  6. Step 6: Final answer
    x = 51,154.38

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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.