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Finding the Fourth Proportional to 43,706.69, 65,541.95 and 13,710.92

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Solution

The fourth proportional to 43,706.69, 65,541.95 and 13,710.92 is: 20,560.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,706.69 : 65,541.95 = 13,710.92 : x
  2. Step 2: Convert to fraction form
    43,706.69/65,541.95 = 13,710.92/x
  3. Step 3: Cross multiply
    43,706.69x = 65,541.95 × 13,710.92
  4. Step 4: Simplify right side
    43,706.69x = 898,640,433.09
  5. Step 5: Solve for x
    x = 898,640,433.09/43,706.69
  6. Step 6: Final answer
    x = 20,560.71

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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.