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Finding the Fourth Proportional to 18,291.09, 25,238.19 and 10,330.41

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Solution

The fourth proportional to 18,291.09, 25,238.19 and 10,330.41 is: 14,253.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,291.09 : 25,238.19 = 10,330.41 : x
  2. Step 2: Convert to fraction form
    18,291.09/25,238.19 = 10,330.41/x
  3. Step 3: Cross multiply
    18,291.09x = 25,238.19 × 10,330.41
  4. Step 4: Simplify right side
    18,291.09x = 260,720,850.36
  5. Step 5: Solve for x
    x = 260,720,850.36/18,291.09
  6. Step 6: Final answer
    x = 14,253.98

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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.