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Finding the Fourth Proportional to 14,522.92, 21,786.24 and 7,127.56

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Solution

The fourth proportional to 14,522.92, 21,786.24 and 7,127.56 is: 10,692.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,522.92 : 21,786.24 = 7,127.56 : x
  2. Step 2: Convert to fraction form
    14,522.92/21,786.24 = 7,127.56/x
  3. Step 3: Cross multiply
    14,522.92x = 21,786.24 × 7,127.56
  4. Step 4: Simplify right side
    14,522.92x = 155,282,732.77
  5. Step 5: Solve for x
    x = 155,282,732.77/14,522.92
  6. Step 6: Final answer
    x = 10,692.25

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1.5x scale

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.