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Finding the Fourth Proportional to 9,140.59, 13,710.89 and 3,297.20

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Solution

The fourth proportional to 9,140.59, 13,710.89 and 3,297.20 is: 4,945.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,140.59 : 13,710.89 = 3,297.20 : x
  2. Step 2: Convert to fraction form
    9,140.59/13,710.89 = 3,297.20/x
  3. Step 3: Cross multiply
    9,140.59x = 13,710.89 × 3,297.20
  4. Step 4: Simplify right side
    9,140.59x = 45,207,589.03
  5. Step 5: Solve for x
    x = 45,207,589.03/9,140.59
  6. Step 6: Final answer
    x = 4,945.80

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Similar ratio
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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.