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Finding the Fourth Proportional to 14,919.45, 22,377.92 and 7,020.11

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Solution

The fourth proportional to 14,919.45, 22,377.92 and 7,020.11 is: 10,529.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,919.45 : 22,377.92 = 7,020.11 : x
  2. Step 2: Convert to fraction form
    14,919.45/22,377.92 = 7,020.11/x
  3. Step 3: Cross multiply
    14,919.45x = 22,377.92 × 7,020.11
  4. Step 4: Simplify right side
    14,919.45x = 157,095,312.98
  5. Step 5: Solve for x
    x = 157,095,312.98/14,919.45
  6. Step 6: Final answer
    x = 10,529.56

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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.