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Finding the Fourth Proportional to 14,961.64, 20,650.98 and 10,244.20

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Solution

The fourth proportional to 14,961.64, 20,650.98 and 10,244.20 is: 14,139.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,961.64 : 20,650.98 = 10,244.20 : x
  2. Step 2: Convert to fraction form
    14,961.64/20,650.98 = 10,244.20/x
  3. Step 3: Cross multiply
    14,961.64x = 20,650.98 × 10,244.20
  4. Step 4: Simplify right side
    14,961.64x = 211,552,769.32
  5. Step 5: Solve for x
    x = 211,552,769.32/14,961.64
  6. Step 6: Final answer
    x = 14,139.68

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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.