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Finding the Fourth Proportional to 9,379.87, 12,945.95 and 6,026.87

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Solution

The fourth proportional to 9,379.87, 12,945.95 and 6,026.87 is: 8,318.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,379.87 : 12,945.95 = 6,026.87 : x
  2. Step 2: Convert to fraction form
    9,379.87/12,945.95 = 6,026.87/x
  3. Step 3: Cross multiply
    9,379.87x = 12,945.95 × 6,026.87
  4. Step 4: Simplify right side
    9,379.87x = 78,023,559.91
  5. Step 5: Solve for x
    x = 78,023,559.91/9,379.87
  6. Step 6: Final answer
    x = 8,318.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.