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Finding the Fourth Proportional to 18,290.76, 25,241.94 and 10,333.86

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Solution

The fourth proportional to 18,290.76, 25,241.94 and 10,333.86 is: 14,261.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,290.76 : 25,241.94 = 10,333.86 : x
  2. Step 2: Convert to fraction form
    18,290.76/25,241.94 = 10,333.86/x
  3. Step 3: Cross multiply
    18,290.76x = 25,241.94 × 10,333.86
  4. Step 4: Simplify right side
    18,290.76x = 260,846,674.09
  5. Step 5: Solve for x
    x = 260,846,674.09/18,290.76
  6. Step 6: Final answer
    x = 14,261.12

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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.