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Finding the Fourth Proportional to 8,588.55, 11,853.14 and 4,811.87

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Solution

The fourth proportional to 8,588.55, 11,853.14 and 4,811.87 is: 6,640.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,588.55 : 11,853.14 = 4,811.87 : x
  2. Step 2: Convert to fraction form
    8,588.55/11,853.14 = 4,811.87/x
  3. Step 3: Cross multiply
    8,588.55x = 11,853.14 × 4,811.87
  4. Step 4: Simplify right side
    8,588.55x = 57,035,774.35
  5. Step 5: Solve for x
    x = 57,035,774.35/8,588.55
  6. Step 6: Final answer
    x = 6,640.91

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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.