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Finding the Fourth Proportional to 9,103.60, 13,644.60 and 3,838.60

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Solution

The fourth proportional to 9,103.60, 13,644.60 and 3,838.60 is: 5,753.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,103.60 : 13,644.60 = 3,838.60 : x
  2. Step 2: Convert to fraction form
    9,103.60/13,644.60 = 3,838.60/x
  3. Step 3: Cross multiply
    9,103.60x = 13,644.60 × 3,838.60
  4. Step 4: Simplify right side
    9,103.60x = 52,376,161.56
  5. Step 5: Solve for x
    x = 52,376,161.56/9,103.60
  6. Step 6: Final answer
    x = 5,753.35

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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.