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Finding the Fourth Proportional to 8,324.59, 11,487.96 and 4,787.57

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Solution

The fourth proportional to 8,324.59, 11,487.96 and 4,787.57 is: 6,606.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,324.59 : 11,487.96 = 4,787.57 : x
  2. Step 2: Convert to fraction form
    8,324.59/11,487.96 = 4,787.57/x
  3. Step 3: Cross multiply
    8,324.59x = 11,487.96 × 4,787.57
  4. Step 4: Simplify right side
    8,324.59x = 54,999,331.28
  5. Step 5: Solve for x
    x = 54,999,331.28/8,324.59
  6. Step 6: Final answer
    x = 6,606.86

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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.