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Finding the Fourth Proportional to 8,957.92, 12,367.10 and 5,983.60

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Solution

The fourth proportional to 8,957.92, 12,367.10 and 5,983.60 is: 8,260.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,957.92 : 12,367.10 = 5,983.60 : x
  2. Step 2: Convert to fraction form
    8,957.92/12,367.10 = 5,983.60/x
  3. Step 3: Cross multiply
    8,957.92x = 12,367.10 × 5,983.60
  4. Step 4: Simplify right side
    8,957.92x = 73,999,779.56
  5. Step 5: Solve for x
    x = 73,999,779.56/8,957.92
  6. Step 6: Final answer
    x = 8,260.82

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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.