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Finding the Fourth Proportional to 27,642.80, 41,464.20 and 10,114.40

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Solution

The fourth proportional to 27,642.80, 41,464.20 and 10,114.40 is: 15,171.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,642.80 : 41,464.20 = 10,114.40 : x
  2. Step 2: Convert to fraction form
    27,642.80/41,464.20 = 10,114.40/x
  3. Step 3: Cross multiply
    27,642.80x = 41,464.20 × 10,114.40
  4. Step 4: Simplify right side
    27,642.80x = 419,385,504.48
  5. Step 5: Solve for x
    x = 419,385,504.48/27,642.80
  6. Step 6: Final answer
    x = 15,171.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.