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Finding the Fourth Proportional to 15,884.10, 21,910.02 and 10,226.22

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Solution

The fourth proportional to 15,884.10, 21,910.02 and 10,226.22 is: 14,105.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,884.10 : 21,910.02 = 10,226.22 : x
  2. Step 2: Convert to fraction form
    15,884.10/21,910.02 = 10,226.22/x
  3. Step 3: Cross multiply
    15,884.10x = 21,910.02 × 10,226.22
  4. Step 4: Simplify right side
    15,884.10x = 224,056,684.72
  5. Step 5: Solve for x
    x = 224,056,684.72/15,884.10
  6. Step 6: Final answer
    x = 14,105.72

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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.