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Finding the Fourth Proportional to 9,865.72, 14,793.12 and 3,288.32

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Solution

The fourth proportional to 9,865.72, 14,793.12 and 3,288.32 is: 4,930.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,865.72 : 14,793.12 = 3,288.32 : x
  2. Step 2: Convert to fraction form
    9,865.72/14,793.12 = 3,288.32/x
  3. Step 3: Cross multiply
    9,865.72x = 14,793.12 × 3,288.32
  4. Step 4: Simplify right side
    9,865.72x = 48,644,512.36
  5. Step 5: Solve for x
    x = 48,644,512.36/9,865.72
  6. Step 6: Final answer
    x = 4,930.66

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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.