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Finding the Fourth Proportional to 18,362.32, 27,532.53 and 12,446.48

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Solution

The fourth proportional to 18,362.32, 27,532.53 and 12,446.48 is: 18,662.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,362.32 : 27,532.53 = 12,446.48 : x
  2. Step 2: Convert to fraction form
    18,362.32/27,532.53 = 12,446.48/x
  3. Step 3: Cross multiply
    18,362.32x = 27,532.53 × 12,446.48
  4. Step 4: Simplify right side
    18,362.32x = 342,683,152.83
  5. Step 5: Solve for x
    x = 342,683,152.83/18,362.32
  6. Step 6: Final answer
    x = 18,662.30

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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.