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Finding the Fourth Proportional to 18,290.54, 25,241.02 and 9,907.04

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Solution

The fourth proportional to 18,290.54, 25,241.02 and 9,907.04 is: 13,671.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,290.54 : 25,241.02 = 9,907.04 : x
  2. Step 2: Convert to fraction form
    18,290.54/25,241.02 = 9,907.04/x
  3. Step 3: Cross multiply
    18,290.54x = 25,241.02 × 9,907.04
  4. Step 4: Simplify right side
    18,290.54x = 250,063,794.78
  5. Step 5: Solve for x
    x = 250,063,794.78/18,290.54
  6. Step 6: Final answer
    x = 13,671.76

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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.