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Finding the Fourth Proportional to 8,588.08, 12,865.78 and 4,892.86

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Solution

The fourth proportional to 8,588.08, 12,865.78 and 4,892.86 is: 7,329.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,588.08 : 12,865.78 = 4,892.86 : x
  2. Step 2: Convert to fraction form
    8,588.08/12,865.78 = 4,892.86/x
  3. Step 3: Cross multiply
    8,588.08x = 12,865.78 × 4,892.86
  4. Step 4: Simplify right side
    8,588.08x = 62,950,460.33
  5. Step 5: Solve for x
    x = 62,950,460.33/8,588.08
  6. Step 6: Final answer
    x = 7,329.98

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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.