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Finding the Fourth Proportional to 8,385.93, 12,581.63 and 4,003.43

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Solution

The fourth proportional to 8,385.93, 12,581.63 and 4,003.43 is: 6,006.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,385.93 : 12,581.63 = 4,003.43 : x
  2. Step 2: Convert to fraction form
    8,385.93/12,581.63 = 4,003.43/x
  3. Step 3: Cross multiply
    8,385.93x = 12,581.63 × 4,003.43
  4. Step 4: Simplify right side
    8,385.93x = 50,369,607.08
  5. Step 5: Solve for x
    x = 50,369,607.08/8,385.93
  6. Step 6: Final answer
    x = 6,006.44

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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.