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Finding the Fourth Proportional to 18,356.90, 27,521.41 and 9,462.64

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Solution

The fourth proportional to 18,356.90, 27,521.41 and 9,462.64 is: 14,186.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,356.90 : 27,521.41 = 9,462.64 : x
  2. Step 2: Convert to fraction form
    18,356.90/27,521.41 = 9,462.64/x
  3. Step 3: Cross multiply
    18,356.90x = 27,521.41 × 9,462.64
  4. Step 4: Simplify right side
    18,356.90x = 260,425,195.12
  5. Step 5: Solve for x
    x = 260,425,195.12/18,356.90
  6. Step 6: Final answer
    x = 14,186.78

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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.