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Finding the Fourth Proportional to 8,592.85, 12,887.73 and 3,911.74

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Solution

The fourth proportional to 8,592.85, 12,887.73 and 3,911.74 is: 5,866.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,592.85 : 12,887.73 = 3,911.74 : x
  2. Step 2: Convert to fraction form
    8,592.85/12,887.73 = 3,911.74/x
  3. Step 3: Cross multiply
    8,592.85x = 12,887.73 × 3,911.74
  4. Step 4: Simplify right side
    8,592.85x = 50,413,448.95
  5. Step 5: Solve for x
    x = 50,413,448.95/8,592.85
  6. Step 6: Final answer
    x = 5,866.91

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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.