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Finding the Fourth Proportional to 22,991.79, 34,487.91 and 12,597.87

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Solution

The fourth proportional to 22,991.79, 34,487.91 and 12,597.87 is: 18,896.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,991.79 : 34,487.91 = 12,597.87 : x
  2. Step 2: Convert to fraction form
    22,991.79/34,487.91 = 12,597.87/x
  3. Step 3: Cross multiply
    22,991.79x = 34,487.91 × 12,597.87
  4. Step 4: Simplify right side
    22,991.79x = 434,474,206.75
  5. Step 5: Solve for x
    x = 434,474,206.75/22,991.79
  6. Step 6: Final answer
    x = 18,896.93

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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.