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Finding the Fourth Proportional to 29,176.96, 43,764.96 and 8,400.40

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Solution

The fourth proportional to 29,176.96, 43,764.96 and 8,400.40 is: 12,600.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,176.96 : 43,764.96 = 8,400.40 : x
  2. Step 2: Convert to fraction form
    29,176.96/43,764.96 = 8,400.40/x
  3. Step 3: Cross multiply
    29,176.96x = 43,764.96 × 8,400.40
  4. Step 4: Simplify right side
    29,176.96x = 367,643,169.98
  5. Step 5: Solve for x
    x = 367,643,169.98/29,176.96
  6. Step 6: Final answer
    x = 12,600.46

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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.