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Finding the Fourth Proportional to 8,588.76, 12,861.06 and 7,611.96

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Solution

The fourth proportional to 8,588.76, 12,861.06 and 7,611.96 is: 11,398.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,588.76 : 12,861.06 = 7,611.96 : x
  2. Step 2: Convert to fraction form
    8,588.76/12,861.06 = 7,611.96/x
  3. Step 3: Cross multiply
    8,588.76x = 12,861.06 × 7,611.96
  4. Step 4: Simplify right side
    8,588.76x = 97,897,874.28
  5. Step 5: Solve for x
    x = 97,897,874.28/8,588.76
  6. Step 6: Final answer
    x = 11,398.37

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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.