Home / 19,100.88-28,640.90-6,619.86

Finding the Fourth Proportional to 19,100.88, 28,640.90 and 6,619.86

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Solution

The fourth proportional to 19,100.88, 28,640.90 and 6,619.86 is: 9,926.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,100.88 : 28,640.90 = 6,619.86 : x
  2. Step 2: Convert to fraction form
    19,100.88/28,640.90 = 6,619.86/x
  3. Step 3: Cross multiply
    19,100.88x = 28,640.90 × 6,619.86
  4. Step 4: Simplify right side
    19,100.88x = 189,598,715.17
  5. Step 5: Solve for x
    x = 189,598,715.17/19,100.88
  6. Step 6: Final answer
    x = 9,926.18

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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.