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Finding the Fourth Proportional to 34,401.80, 51,612.30 and 16,872.20

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Solution

The fourth proportional to 34,401.80, 51,612.30 and 16,872.20 is: 25,313.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,401.80 : 51,612.30 = 16,872.20 : x
  2. Step 2: Convert to fraction form
    34,401.80/51,612.30 = 16,872.20/x
  3. Step 3: Cross multiply
    34,401.80x = 51,612.30 × 16,872.20
  4. Step 4: Simplify right side
    34,401.80x = 870,813,048.06
  5. Step 5: Solve for x
    x = 870,813,048.06/34,401.80
  6. Step 6: Final answer
    x = 25,313.01

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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.