Home / 43,759.85-65,639.36-18,783.70

Finding the Fourth Proportional to 43,759.85, 65,639.36 and 18,783.70

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Solution

The fourth proportional to 43,759.85, 65,639.36 and 18,783.70 is: 28,175.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,759.85 : 65,639.36 = 18,783.70 : x
  2. Step 2: Convert to fraction form
    43,759.85/65,639.36 = 18,783.70/x
  3. Step 3: Cross multiply
    43,759.85x = 65,639.36 × 18,783.70
  4. Step 4: Simplify right side
    43,759.85x = 1,232,949,929.29
  5. Step 5: Solve for x
    x = 1,232,949,929.29/43,759.85
  6. Step 6: Final answer
    x = 28,175.37

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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.