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Finding the Fourth Proportional to 10,104.56, 15,159.24 and 3,179

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Solution

The fourth proportional to 10,104.56, 15,159.24 and 3,179 is: 4,769.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,104.56 : 15,159.24 = 3,179 : x
  2. Step 2: Convert to fraction form
    10,104.56/15,159.24 = 3,179/x
  3. Step 3: Cross multiply
    10,104.56x = 15,159.24 × 3,179
  4. Step 4: Simplify right side
    10,104.56x = 48,191,223.96
  5. Step 5: Solve for x
    x = 48,191,223.96/10,104.56
  6. Step 6: Final answer
    x = 4,769.26

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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.