Home / 65,917.77-98,893.53-19,170.65

Finding the Fourth Proportional to 65,917.77, 98,893.53 and 19,170.65

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Solution

The fourth proportional to 65,917.77, 98,893.53 and 19,170.65 is: 28,760.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,917.77 : 98,893.53 = 19,170.65 : x
  2. Step 2: Convert to fraction form
    65,917.77/98,893.53 = 19,170.65/x
  3. Step 3: Cross multiply
    65,917.77x = 98,893.53 × 19,170.65
  4. Step 4: Simplify right side
    65,917.77x = 1,895,852,756.43
  5. Step 5: Solve for x
    x = 1,895,852,756.43/65,917.77
  6. Step 6: Final answer
    x = 28,760.88

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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.