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Finding the Fourth Proportional to 22,369.48, 30,868.70 and 12,295.98

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Solution

The fourth proportional to 22,369.48, 30,868.70 and 12,295.98 is: 16,967.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,369.48 : 30,868.70 = 12,295.98 : x
  2. Step 2: Convert to fraction form
    22,369.48/30,868.70 = 12,295.98/x
  3. Step 3: Cross multiply
    22,369.48x = 30,868.70 × 12,295.98
  4. Step 4: Simplify right side
    22,369.48x = 379,560,972.10
  5. Step 5: Solve for x
    x = 379,560,972.10/22,369.48
  6. Step 6: Final answer
    x = 16,967.80

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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.