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Finding the Fourth Proportional to 18,266.31, 25,208.16 and 10,609.02

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Solution

The fourth proportional to 18,266.31, 25,208.16 and 10,609.02 is: 14,640.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,266.31 : 25,208.16 = 10,609.02 : x
  2. Step 2: Convert to fraction form
    18,266.31/25,208.16 = 10,609.02/x
  3. Step 3: Cross multiply
    18,266.31x = 25,208.16 × 10,609.02
  4. Step 4: Simplify right side
    18,266.31x = 267,433,873.60
  5. Step 5: Solve for x
    x = 267,433,873.60/18,266.31
  6. Step 6: Final answer
    x = 14,640.83

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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.