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Finding the Fourth Proportional to 14,860.54, 20,507.43 and 8,146.09

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Solution

The fourth proportional to 14,860.54, 20,507.43 and 8,146.09 is: 11,241.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,860.54 : 20,507.43 = 8,146.09 : x
  2. Step 2: Convert to fraction form
    14,860.54/20,507.43 = 8,146.09/x
  3. Step 3: Cross multiply
    14,860.54x = 20,507.43 × 8,146.09
  4. Step 4: Simplify right side
    14,860.54x = 167,055,370.45
  5. Step 5: Solve for x
    x = 167,055,370.45/14,860.54
  6. Step 6: Final answer
    x = 11,241.54

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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.