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Finding the Fourth Proportional to 8,783.16, 13,233.96 and 7,257.30

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Solution

The fourth proportional to 8,783.16, 13,233.96 and 7,257.30 is: 10,934.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,783.16 : 13,233.96 = 7,257.30 : x
  2. Step 2: Convert to fraction form
    8,783.16/13,233.96 = 7,257.30/x
  3. Step 3: Cross multiply
    8,783.16x = 13,233.96 × 7,257.30
  4. Step 4: Simplify right side
    8,783.16x = 96,042,817.91
  5. Step 5: Solve for x
    x = 96,042,817.91/8,783.16
  6. Step 6: Final answer
    x = 10,934.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.