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Finding the Fourth Proportional to 29,656.69, 44,501.43 and 12,138.82

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Solution

The fourth proportional to 29,656.69, 44,501.43 and 12,138.82 is: 18,214.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,656.69 : 44,501.43 = 12,138.82 : x
  2. Step 2: Convert to fraction form
    29,656.69/44,501.43 = 12,138.82/x
  3. Step 3: Cross multiply
    29,656.69x = 44,501.43 × 12,138.82
  4. Step 4: Simplify right side
    29,656.69x = 540,194,626.01
  5. Step 5: Solve for x
    x = 540,194,626.01/29,656.69
  6. Step 6: Final answer
    x = 18,214.94

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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.