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Finding the Fourth Proportional to 8,555.86, 12,834.60 and 3,008.62

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Solution

The fourth proportional to 8,555.86, 12,834.60 and 3,008.62 is: 4,513.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,555.86 : 12,834.60 = 3,008.62 : x
  2. Step 2: Convert to fraction form
    8,555.86/12,834.60 = 3,008.62/x
  3. Step 3: Cross multiply
    8,555.86x = 12,834.60 × 3,008.62
  4. Step 4: Simplify right side
    8,555.86x = 38,614,434.25
  5. Step 5: Solve for x
    x = 38,614,434.25/8,555.86
  6. Step 6: Final answer
    x = 4,513.21

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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.