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Finding the Fourth Proportional to 7,508.70, 11,263.05 and 3,611.10

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Solution

The fourth proportional to 7,508.70, 11,263.05 and 3,611.10 is: 5,416.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,508.70 : 11,263.05 = 3,611.10 : x
  2. Step 2: Convert to fraction form
    7,508.70/11,263.05 = 3,611.10/x
  3. Step 3: Cross multiply
    7,508.70x = 11,263.05 × 3,611.10
  4. Step 4: Simplify right side
    7,508.70x = 40,671,999.86
  5. Step 5: Solve for x
    x = 40,671,999.86/7,508.70
  6. Step 6: Final answer
    x = 5,416.65

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Similar ratio
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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.