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Finding the Fourth Proportional to 65,621.80, 98,505.60 and 36,097.30

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Solution

The fourth proportional to 65,621.80, 98,505.60 and 36,097.30 is: 54,186.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,621.80 : 98,505.60 = 36,097.30 : x
  2. Step 2: Convert to fraction form
    65,621.80/98,505.60 = 36,097.30/x
  3. Step 3: Cross multiply
    65,621.80x = 98,505.60 × 36,097.30
  4. Step 4: Simplify right side
    65,621.80x = 3,555,786,194.88
  5. Step 5: Solve for x
    x = 3,555,786,194.88/65,621.80
  6. Step 6: Final answer
    x = 54,186.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.