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Finding the Fourth Proportional to 8,394.38, 12,580.80 and 7,093.46

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Solution

The fourth proportional to 8,394.38, 12,580.80 and 7,093.46 is: 10,631.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,394.38 : 12,580.80 = 7,093.46 : x
  2. Step 2: Convert to fraction form
    8,394.38/12,580.80 = 7,093.46/x
  3. Step 3: Cross multiply
    8,394.38x = 12,580.80 × 7,093.46
  4. Step 4: Simplify right side
    8,394.38x = 89,241,401.57
  5. Step 5: Solve for x
    x = 89,241,401.57/8,394.38
  6. Step 6: Final answer
    x = 10,631.09

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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.