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Finding the Fourth Proportional to 43,885.69, 65,827.87 and 10,605.52

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Solution

The fourth proportional to 43,885.69, 65,827.87 and 10,605.52 is: 15,908.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,885.69 : 65,827.87 = 10,605.52 : x
  2. Step 2: Convert to fraction form
    43,885.69/65,827.87 = 10,605.52/x
  3. Step 3: Cross multiply
    43,885.69x = 65,827.87 × 10,605.52
  4. Step 4: Simplify right side
    43,885.69x = 698,138,791.84
  5. Step 5: Solve for x
    x = 698,138,791.84/43,885.69
  6. Step 6: Final answer
    x = 15,908.12

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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.