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Finding the Fourth Proportional to 43,405.70, 65,092.03 and 15,320.52

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Solution

The fourth proportional to 43,405.70, 65,092.03 and 15,320.52 is: 22,974.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,405.70 : 65,092.03 = 15,320.52 : x
  2. Step 2: Convert to fraction form
    43,405.70/65,092.03 = 15,320.52/x
  3. Step 3: Cross multiply
    43,405.70x = 65,092.03 × 15,320.52
  4. Step 4: Simplify right side
    43,405.70x = 997,243,709.15
  5. Step 5: Solve for x
    x = 997,243,709.15/43,405.70
  6. Step 6: Final answer
    x = 22,974.95

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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.