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Finding the Fourth Proportional to 22,369.92, 30,868.90 and 12,298.11

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Solution

The fourth proportional to 22,369.92, 30,868.90 and 12,298.11 is: 16,970.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,369.92 : 30,868.90 = 12,298.11 : x
  2. Step 2: Convert to fraction form
    22,369.92/30,868.90 = 12,298.11/x
  3. Step 3: Cross multiply
    22,369.92x = 30,868.90 × 12,298.11
  4. Step 4: Simplify right side
    22,369.92x = 379,629,127.78
  5. Step 5: Solve for x
    x = 379,629,127.78/22,369.92
  6. Step 6: Final answer
    x = 16,970.52

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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.