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Finding the Fourth Proportional to 18,356.65, 27,548.82 and 8,502.84

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Solution

The fourth proportional to 18,356.65, 27,548.82 and 8,502.84 is: 12,760.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,356.65 : 27,548.82 = 8,502.84 : x
  2. Step 2: Convert to fraction form
    18,356.65/27,548.82 = 8,502.84/x
  3. Step 3: Cross multiply
    18,356.65x = 27,548.82 × 8,502.84
  4. Step 4: Simplify right side
    18,356.65x = 234,243,208.65
  5. Step 5: Solve for x
    x = 234,243,208.65/18,356.65
  6. Step 6: Final answer
    x = 12,760.67

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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.