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Finding the Fourth Proportional to 8,957.72, 12,367.05 and 5,935.40

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Solution

The fourth proportional to 8,957.72, 12,367.05 and 5,935.40 is: 8,194.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,957.72 : 12,367.05 = 5,935.40 : x
  2. Step 2: Convert to fraction form
    8,957.72/12,367.05 = 5,935.40/x
  3. Step 3: Cross multiply
    8,957.72x = 12,367.05 × 5,935.40
  4. Step 4: Simplify right side
    8,957.72x = 73,403,388.57
  5. Step 5: Solve for x
    x = 73,403,388.57/8,957.72
  6. Step 6: Final answer
    x = 8,194.43

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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.