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Finding the Fourth Proportional to 11,972.45, 16,532.43 and 7,503.89

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Solution

The fourth proportional to 11,972.45, 16,532.43 and 7,503.89 is: 10,361.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,972.45 : 16,532.43 = 7,503.89 : x
  2. Step 2: Convert to fraction form
    11,972.45/16,532.43 = 7,503.89/x
  3. Step 3: Cross multiply
    11,972.45x = 16,532.43 × 7,503.89
  4. Step 4: Simplify right side
    11,972.45x = 124,057,453.49
  5. Step 5: Solve for x
    x = 124,057,453.49/11,972.45
  6. Step 6: Final answer
    x = 10,361.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.