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Finding the Fourth Proportional to 15,706.04, 21,674.04 and 8,632.31

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Solution

The fourth proportional to 15,706.04, 21,674.04 and 8,632.31 is: 11,912.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,706.04 : 21,674.04 = 8,632.31 : x
  2. Step 2: Convert to fraction form
    15,706.04/21,674.04 = 8,632.31/x
  3. Step 3: Cross multiply
    15,706.04x = 21,674.04 × 8,632.31
  4. Step 4: Simplify right side
    15,706.04x = 187,096,923.86
  5. Step 5: Solve for x
    x = 187,096,923.86/15,706.04
  6. Step 6: Final answer
    x = 11,912.42

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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.