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Finding the Fourth Proportional to 18,266.35, 25,219.19 and 14,917.16

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Solution

The fourth proportional to 18,266.35, 25,219.19 and 14,917.16 is: 20,595.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,266.35 : 25,219.19 = 14,917.16 : x
  2. Step 2: Convert to fraction form
    18,266.35/25,219.19 = 14,917.16/x
  3. Step 3: Cross multiply
    18,266.35x = 25,219.19 × 14,917.16
  4. Step 4: Simplify right side
    18,266.35x = 376,198,687.75
  5. Step 5: Solve for x
    x = 376,198,687.75/18,266.35
  6. Step 6: Final answer
    x = 20,595.18

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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.