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Finding the Fourth Proportional to 19,220.66, 26,529.52 and 12,524.66

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Solution

The fourth proportional to 19,220.66, 26,529.52 and 12,524.66 is: 17,287.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,220.66 : 26,529.52 = 12,524.66 : x
  2. Step 2: Convert to fraction form
    19,220.66/26,529.52 = 12,524.66/x
  3. Step 3: Cross multiply
    19,220.66x = 26,529.52 × 12,524.66
  4. Step 4: Simplify right side
    19,220.66x = 332,273,217.96
  5. Step 5: Solve for x
    x = 332,273,217.96/19,220.66
  6. Step 6: Final answer
    x = 17,287.29

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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.