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Finding the Fourth Proportional to 18,492.16, 25,522.02 and 11,780.72

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Solution

The fourth proportional to 18,492.16, 25,522.02 and 11,780.72 is: 16,259.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,492.16 : 25,522.02 = 11,780.72 : x
  2. Step 2: Convert to fraction form
    18,492.16/25,522.02 = 11,780.72/x
  3. Step 3: Cross multiply
    18,492.16x = 25,522.02 × 11,780.72
  4. Step 4: Simplify right side
    18,492.16x = 300,667,771.45
  5. Step 5: Solve for x
    x = 300,667,771.45/18,492.16
  6. Step 6: Final answer
    x = 16,259.20

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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.