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Finding the Fourth Proportional to 15,309.91, 22,957.27 and 8,986.29

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Solution

The fourth proportional to 15,309.91, 22,957.27 and 8,986.29 is: 13,474.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,309.91 : 22,957.27 = 8,986.29 : x
  2. Step 2: Convert to fraction form
    15,309.91/22,957.27 = 8,986.29/x
  3. Step 3: Cross multiply
    15,309.91x = 22,957.27 × 8,986.29
  4. Step 4: Simplify right side
    15,309.91x = 206,300,756.96
  5. Step 5: Solve for x
    x = 206,300,756.96/15,309.91
  6. Step 6: Final answer
    x = 13,474.98

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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.