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Finding the Fourth Proportional to 8,933.59, 13,385.80 and 8,592.31

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Solution

The fourth proportional to 8,933.59, 13,385.80 and 8,592.31 is: 12,874.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,933.59 : 13,385.80 = 8,592.31 : x
  2. Step 2: Convert to fraction form
    8,933.59/13,385.80 = 8,592.31/x
  3. Step 3: Cross multiply
    8,933.59x = 13,385.80 × 8,592.31
  4. Step 4: Simplify right side
    8,933.59x = 115,014,833.31
  5. Step 5: Solve for x
    x = 115,014,833.31/8,933.59
  6. Step 6: Final answer
    x = 12,874.43

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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.