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Finding the Fourth Proportional to 9,379.63, 12,945.62 and 6,026.64

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Solution

The fourth proportional to 9,379.63, 12,945.62 and 6,026.64 is: 8,317.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,379.63 : 12,945.62 = 6,026.64 : x
  2. Step 2: Convert to fraction form
    9,379.63/12,945.62 = 6,026.64/x
  3. Step 3: Cross multiply
    9,379.63x = 12,945.62 × 6,026.64
  4. Step 4: Simplify right side
    9,379.63x = 78,018,557.84
  5. Step 5: Solve for x
    x = 78,018,557.84/9,379.63
  6. Step 6: Final answer
    x = 8,317.87

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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.