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Finding the Fourth Proportional to 29,967.86, 44,936.15 and 8,905

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Solution

The fourth proportional to 29,967.86, 44,936.15 and 8,905 is: 13,352.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,967.86 : 44,936.15 = 8,905 : x
  2. Step 2: Convert to fraction form
    29,967.86/44,936.15 = 8,905/x
  3. Step 3: Cross multiply
    29,967.86x = 44,936.15 × 8,905
  4. Step 4: Simplify right side
    29,967.86x = 400,156,415.75
  5. Step 5: Solve for x
    x = 400,156,415.75/29,967.86
  6. Step 6: Final answer
    x = 13,352.85

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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.