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Finding the Fourth Proportional to 18,290.56, 25,241 and 9,907.04

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Solution

The fourth proportional to 18,290.56, 25,241 and 9,907.04 is: 13,671.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,290.56 : 25,241 = 9,907.04 : x
  2. Step 2: Convert to fraction form
    18,290.56/25,241 = 9,907.04/x
  3. Step 3: Cross multiply
    18,290.56x = 25,241 × 9,907.04
  4. Step 4: Simplify right side
    18,290.56x = 250,063,596.64
  5. Step 5: Solve for x
    x = 250,063,596.64/18,290.56
  6. Step 6: Final answer
    x = 13,671.73

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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.