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Finding the Fourth Proportional to 9,611.90, 13,265.07 and 5,363.72

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Solution

The fourth proportional to 9,611.90, 13,265.07 and 5,363.72 is: 7,402.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,611.90 : 13,265.07 = 5,363.72 : x
  2. Step 2: Convert to fraction form
    9,611.90/13,265.07 = 5,363.72/x
  3. Step 3: Cross multiply
    9,611.90x = 13,265.07 × 5,363.72
  4. Step 4: Simplify right side
    9,611.90x = 71,150,121.26
  5. Step 5: Solve for x
    x = 71,150,121.26/9,611.90
  6. Step 6: Final answer
    x = 7,402.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.