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Finding the Fourth Proportional to 18,017.70, 27,026.55 and 11,796.90

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Solution

The fourth proportional to 18,017.70, 27,026.55 and 11,796.90 is: 17,695.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,017.70 : 27,026.55 = 11,796.90 : x
  2. Step 2: Convert to fraction form
    18,017.70/27,026.55 = 11,796.90/x
  3. Step 3: Cross multiply
    18,017.70x = 27,026.55 × 11,796.90
  4. Step 4: Simplify right side
    18,017.70x = 318,829,507.70
  5. Step 5: Solve for x
    x = 318,829,507.70/18,017.70
  6. Step 6: Final answer
    x = 17,695.35

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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.