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Finding the Fourth Proportional to 9,329.60, 13,992.80 and 3,483.20

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Solution

The fourth proportional to 9,329.60, 13,992.80 and 3,483.20 is: 5,224.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,329.60 : 13,992.80 = 3,483.20 : x
  2. Step 2: Convert to fraction form
    9,329.60/13,992.80 = 3,483.20/x
  3. Step 3: Cross multiply
    9,329.60x = 13,992.80 × 3,483.20
  4. Step 4: Simplify right side
    9,329.60x = 48,739,720.96
  5. Step 5: Solve for x
    x = 48,739,720.96/9,329.60
  6. Step 6: Final answer
    x = 5,224.20

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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.