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Finding the Fourth Proportional to 9,328.86, 12,863.96 and 7,204.73

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Solution

The fourth proportional to 9,328.86, 12,863.96 and 7,204.73 is: 9,934.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,328.86 : 12,863.96 = 7,204.73 : x
  2. Step 2: Convert to fraction form
    9,328.86/12,863.96 = 7,204.73/x
  3. Step 3: Cross multiply
    9,328.86x = 12,863.96 × 7,204.73
  4. Step 4: Simplify right side
    9,328.86x = 92,681,354.67
  5. Step 5: Solve for x
    x = 92,681,354.67/9,328.86
  6. Step 6: Final answer
    x = 9,934.91

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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.