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Finding the Fourth Proportional to 18,635.77, 27,954.53 and 6,156.91

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Solution

The fourth proportional to 18,635.77, 27,954.53 and 6,156.91 is: 9,235.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,635.77 : 27,954.53 = 6,156.91 : x
  2. Step 2: Convert to fraction form
    18,635.77/27,954.53 = 6,156.91/x
  3. Step 3: Cross multiply
    18,635.77x = 27,954.53 × 6,156.91
  4. Step 4: Simplify right side
    18,635.77x = 172,113,525.30
  5. Step 5: Solve for x
    x = 172,113,525.30/18,635.77
  6. Step 6: Final answer
    x = 9,235.65

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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.