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Finding the Fourth Proportional to 18,250.53, 25,201.08 and 12,301.89

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Solution

The fourth proportional to 18,250.53, 25,201.08 and 12,301.89 is: 16,986.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,250.53 : 25,201.08 = 12,301.89 : x
  2. Step 2: Convert to fraction form
    18,250.53/25,201.08 = 12,301.89/x
  3. Step 3: Cross multiply
    18,250.53x = 25,201.08 × 12,301.89
  4. Step 4: Simplify right side
    18,250.53x = 310,020,914.04
  5. Step 5: Solve for x
    x = 310,020,914.04/18,250.53
  6. Step 6: Final answer
    x = 16,986.95

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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.