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Finding the Fourth Proportional to 14,546.25, 20,073.90 and 8,173.11

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Solution

The fourth proportional to 14,546.25, 20,073.90 and 8,173.11 is: 11,278.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,546.25 : 20,073.90 = 8,173.11 : x
  2. Step 2: Convert to fraction form
    14,546.25/20,073.90 = 8,173.11/x
  3. Step 3: Cross multiply
    14,546.25x = 20,073.90 × 8,173.11
  4. Step 4: Simplify right side
    14,546.25x = 164,066,192.83
  5. Step 5: Solve for x
    x = 164,066,192.83/14,546.25
  6. Step 6: Final answer
    x = 11,278.93

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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.