Home / 43,555.28-65,304.84-18,611.60

Finding the Fourth Proportional to 43,555.28, 65,304.84 and 18,611.60

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Solution

The fourth proportional to 43,555.28, 65,304.84 and 18,611.60 is: 27,905.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,555.28 : 65,304.84 = 18,611.60 : x
  2. Step 2: Convert to fraction form
    43,555.28/65,304.84 = 18,611.60/x
  3. Step 3: Cross multiply
    43,555.28x = 65,304.84 × 18,611.60
  4. Step 4: Simplify right side
    43,555.28x = 1,215,427,560.14
  5. Step 5: Solve for x
    x = 1,215,427,560.14/43,555.28
  6. Step 6: Final answer
    x = 27,905.40

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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.