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Finding the Fourth Proportional to 8,487.99, 12,733.20 and 4,104.27

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Solution

The fourth proportional to 8,487.99, 12,733.20 and 4,104.27 is: 6,156.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,487.99 : 12,733.20 = 4,104.27 : x
  2. Step 2: Convert to fraction form
    8,487.99/12,733.20 = 4,104.27/x
  3. Step 3: Cross multiply
    8,487.99x = 12,733.20 × 4,104.27
  4. Step 4: Simplify right side
    8,487.99x = 52,260,490.76
  5. Step 5: Solve for x
    x = 52,260,490.76/8,487.99
  6. Step 6: Final answer
    x = 6,156.99

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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.