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Finding the Fourth Proportional to 9,323.21, 13,980.63 and 2,747.09

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Solution

The fourth proportional to 9,323.21, 13,980.63 and 2,747.09 is: 4,119.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,323.21 : 13,980.63 = 2,747.09 : x
  2. Step 2: Convert to fraction form
    9,323.21/13,980.63 = 2,747.09/x
  3. Step 3: Cross multiply
    9,323.21x = 13,980.63 × 2,747.09
  4. Step 4: Simplify right side
    9,323.21x = 38,406,048.87
  5. Step 5: Solve for x
    x = 38,406,048.87/9,323.21
  6. Step 6: Final answer
    x = 4,119.40

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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.