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Finding the Fourth Proportional to 18,396.56, 27,595.72 and 5,250.84

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Solution

The fourth proportional to 18,396.56, 27,595.72 and 5,250.84 is: 7,876.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,396.56 : 27,595.72 = 5,250.84 : x
  2. Step 2: Convert to fraction form
    18,396.56/27,595.72 = 5,250.84/x
  3. Step 3: Cross multiply
    18,396.56x = 27,595.72 × 5,250.84
  4. Step 4: Simplify right side
    18,396.56x = 144,900,710.40
  5. Step 5: Solve for x
    x = 144,900,710.40/18,396.56
  6. Step 6: Final answer
    x = 7,876.51

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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.