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Finding the Fourth Proportional to 16,223.70, 24,218.20 and 14,255.40

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Solution

The fourth proportional to 16,223.70, 24,218.20 and 14,255.40 is: 21,279.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,223.70 : 24,218.20 = 14,255.40 : x
  2. Step 2: Convert to fraction form
    16,223.70/24,218.20 = 14,255.40/x
  3. Step 3: Cross multiply
    16,223.70x = 24,218.20 × 14,255.40
  4. Step 4: Simplify right side
    16,223.70x = 345,240,128.28
  5. Step 5: Solve for x
    x = 345,240,128.28/16,223.70
  6. Step 6: Final answer
    x = 21,279.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.