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Finding the Fourth Proportional to 43,765.84, 65,674.21 and 18,463.74

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Solution

The fourth proportional to 43,765.84, 65,674.21 and 18,463.74 is: 27,706.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,765.84 : 65,674.21 = 18,463.74 : x
  2. Step 2: Convert to fraction form
    43,765.84/65,674.21 = 18,463.74/x
  3. Step 3: Cross multiply
    43,765.84x = 65,674.21 × 18,463.74
  4. Step 4: Simplify right side
    43,765.84x = 1,212,591,538.15
  5. Step 5: Solve for x
    x = 1,212,591,538.15/43,765.84
  6. Step 6: Final answer
    x = 27,706.35

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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.