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Finding the Fourth Proportional to 18,450.60, 27,675.90 and 5,302.20

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Solution

The fourth proportional to 18,450.60, 27,675.90 and 5,302.20 is: 7,953.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,450.60 : 27,675.90 = 5,302.20 : x
  2. Step 2: Convert to fraction form
    18,450.60/27,675.90 = 5,302.20/x
  3. Step 3: Cross multiply
    18,450.60x = 27,675.90 × 5,302.20
  4. Step 4: Simplify right side
    18,450.60x = 146,743,156.98
  5. Step 5: Solve for x
    x = 146,743,156.98/18,450.60
  6. Step 6: Final answer
    x = 7,953.30

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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.