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Finding the Fourth Proportional to 9,611.40, 13,264.38 and 5,363.22

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Solution

The fourth proportional to 9,611.40, 13,264.38 and 5,363.22 is: 7,401.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,611.40 : 13,264.38 = 5,363.22 : x
  2. Step 2: Convert to fraction form
    9,611.40/13,264.38 = 5,363.22/x
  3. Step 3: Cross multiply
    9,611.40x = 13,264.38 × 5,363.22
  4. Step 4: Simplify right side
    9,611.40x = 71,139,788.10
  5. Step 5: Solve for x
    x = 71,139,788.10/9,611.40
  6. Step 6: Final answer
    x = 7,401.61

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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.