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Finding the Fourth Proportional to 9,293.60, 13,929.60 and 3,744.20

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Solution

The fourth proportional to 9,293.60, 13,929.60 and 3,744.20 is: 5,611.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,293.60 : 13,929.60 = 3,744.20 : x
  2. Step 2: Convert to fraction form
    9,293.60/13,929.60 = 3,744.20/x
  3. Step 3: Cross multiply
    9,293.60x = 13,929.60 × 3,744.20
  4. Step 4: Simplify right side
    9,293.60x = 52,155,208.32
  5. Step 5: Solve for x
    x = 52,155,208.32/9,293.60
  6. Step 6: Final answer
    x = 5,611.95

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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.