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Finding the Fourth Proportional to 43,674.60, 65,511.90 and 43,346.55

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Solution

The fourth proportional to 43,674.60, 65,511.90 and 43,346.55 is: 65,019.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,674.60 : 65,511.90 = 43,346.55 : x
  2. Step 2: Convert to fraction form
    43,674.60/65,511.90 = 43,346.55/x
  3. Step 3: Cross multiply
    43,674.60x = 65,511.90 × 43,346.55
  4. Step 4: Simplify right side
    43,674.60x = 2,839,714,848.95
  5. Step 5: Solve for x
    x = 2,839,714,848.95/43,674.60
  6. Step 6: Final answer
    x = 65,019.83

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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.