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Finding the Fourth Proportional to 17,551.40, 26,327.10 and 13,634.60

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Solution

The fourth proportional to 17,551.40, 26,327.10 and 13,634.60 is: 20,451.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,551.40 : 26,327.10 = 13,634.60 : x
  2. Step 2: Convert to fraction form
    17,551.40/26,327.10 = 13,634.60/x
  3. Step 3: Cross multiply
    17,551.40x = 26,327.10 × 13,634.60
  4. Step 4: Simplify right side
    17,551.40x = 358,959,477.66
  5. Step 5: Solve for x
    x = 358,959,477.66/17,551.40
  6. Step 6: Final answer
    x = 20,451.90

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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.