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Finding the Fourth Proportional to 18,503.64, 25,527.96 and 11,327.04

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Solution

The fourth proportional to 18,503.64, 25,527.96 and 11,327.04 is: 15,626.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,503.64 : 25,527.96 = 11,327.04 : x
  2. Step 2: Convert to fraction form
    18,503.64/25,527.96 = 11,327.04/x
  3. Step 3: Cross multiply
    18,503.64x = 25,527.96 × 11,327.04
  4. Step 4: Simplify right side
    18,503.64x = 289,156,224.04
  5. Step 5: Solve for x
    x = 289,156,224.04/18,503.64
  6. Step 6: Final answer
    x = 15,626.99

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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.