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Finding the Fourth Proportional to 14,920.10, 22,380.15 and 11,202.20

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Solution

The fourth proportional to 14,920.10, 22,380.15 and 11,202.20 is: 16,803.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,920.10 : 22,380.15 = 11,202.20 : x
  2. Step 2: Convert to fraction form
    14,920.10/22,380.15 = 11,202.20/x
  3. Step 3: Cross multiply
    14,920.10x = 22,380.15 × 11,202.20
  4. Step 4: Simplify right side
    14,920.10x = 250,706,916.33
  5. Step 5: Solve for x
    x = 250,706,916.33/14,920.10
  6. Step 6: Final answer
    x = 16,803.30

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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.