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Finding the Fourth Proportional to 8,674.92, 13,014.41 and 3,127.23

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Solution

The fourth proportional to 8,674.92, 13,014.41 and 3,127.23 is: 4,691.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,674.92 : 13,014.41 = 3,127.23 : x
  2. Step 2: Convert to fraction form
    8,674.92/13,014.41 = 3,127.23/x
  3. Step 3: Cross multiply
    8,674.92x = 13,014.41 × 3,127.23
  4. Step 4: Simplify right side
    8,674.92x = 40,699,037.75
  5. Step 5: Solve for x
    x = 40,699,037.75/8,674.92
  6. Step 6: Final answer
    x = 4,691.57

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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.