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Finding the Fourth Proportional to 21,472.70, 29,632.23 and 12,041.26

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Solution

The fourth proportional to 21,472.70, 29,632.23 and 12,041.26 is: 16,616.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,472.70 : 29,632.23 = 12,041.26 : x
  2. Step 2: Convert to fraction form
    21,472.70/29,632.23 = 12,041.26/x
  3. Step 3: Cross multiply
    21,472.70x = 29,632.23 × 12,041.26
  4. Step 4: Simplify right side
    21,472.70x = 356,809,311.73
  5. Step 5: Solve for x
    x = 356,809,311.73/21,472.70
  6. Step 6: Final answer
    x = 16,616.89

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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.