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Finding the Fourth Proportional to 29,048.65, 43,572.07 and 8,272.15

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Solution

The fourth proportional to 29,048.65, 43,572.07 and 8,272.15 is: 12,407.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,048.65 : 43,572.07 = 8,272.15 : x
  2. Step 2: Convert to fraction form
    29,048.65/43,572.07 = 8,272.15/x
  3. Step 3: Cross multiply
    29,048.65x = 43,572.07 × 8,272.15
  4. Step 4: Simplify right side
    29,048.65x = 360,434,698.85
  5. Step 5: Solve for x
    x = 360,434,698.85/29,048.65
  6. Step 6: Final answer
    x = 12,407.97

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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.