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Finding the Fourth Proportional to 17,081.40, 25,622.10 and 13,625.40

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Solution

The fourth proportional to 17,081.40, 25,622.10 and 13,625.40 is: 20,438.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,081.40 : 25,622.10 = 13,625.40 : x
  2. Step 2: Convert to fraction form
    17,081.40/25,622.10 = 13,625.40/x
  3. Step 3: Cross multiply
    17,081.40x = 25,622.10 × 13,625.40
  4. Step 4: Simplify right side
    17,081.40x = 349,111,361.34
  5. Step 5: Solve for x
    x = 349,111,361.34/17,081.40
  6. Step 6: Final answer
    x = 20,438.10

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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.