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Finding the Fourth Proportional to 9,352.80, 14,029.20 and 3,808.80

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Solution

The fourth proportional to 9,352.80, 14,029.20 and 3,808.80 is: 5,713.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,352.80 : 14,029.20 = 3,808.80 : x
  2. Step 2: Convert to fraction form
    9,352.80/14,029.20 = 3,808.80/x
  3. Step 3: Cross multiply
    9,352.80x = 14,029.20 × 3,808.80
  4. Step 4: Simplify right side
    9,352.80x = 53,434,416.96
  5. Step 5: Solve for x
    x = 53,434,416.96/9,352.80
  6. Step 6: Final answer
    x = 5,713.20

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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.