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Finding the Fourth Proportional to 18,506.41, 25,532.84 and 11,328.84

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Solution

The fourth proportional to 18,506.41, 25,532.84 and 11,328.84 is: 15,630.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,506.41 : 25,532.84 = 11,328.84 : x
  2. Step 2: Convert to fraction form
    18,506.41/25,532.84 = 11,328.84/x
  3. Step 3: Cross multiply
    18,506.41x = 25,532.84 × 11,328.84
  4. Step 4: Simplify right side
    18,506.41x = 289,257,487.43
  5. Step 5: Solve for x
    x = 289,257,487.43/18,506.41
  6. Step 6: Final answer
    x = 15,630.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.