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Finding the Fourth Proportional to 9,328.88, 13,993.80 and 2,403.44

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Solution

The fourth proportional to 9,328.88, 13,993.80 and 2,403.44 is: 3,605.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,328.88 : 13,993.80 = 2,403.44 : x
  2. Step 2: Convert to fraction form
    9,328.88/13,993.80 = 2,403.44/x
  3. Step 3: Cross multiply
    9,328.88x = 13,993.80 × 2,403.44
  4. Step 4: Simplify right side
    9,328.88x = 33,633,258.67
  5. Step 5: Solve for x
    x = 33,633,258.67/9,328.88
  6. Step 6: Final answer
    x = 3,605.28

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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.