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Finding the Fourth Proportional to 14,718, 20,296.44 and 9,410.88

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Solution

The fourth proportional to 14,718, 20,296.44 and 9,410.88 is: 12,977.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,718 : 20,296.44 = 9,410.88 : x
  2. Step 2: Convert to fraction form
    14,718/20,296.44 = 9,410.88/x
  3. Step 3: Cross multiply
    14,718x = 20,296.44 × 9,410.88
  4. Step 4: Simplify right side
    14,718x = 191,007,361.27
  5. Step 5: Solve for x
    x = 191,007,361.27/14,718
  6. Step 6: Final answer
    x = 12,977.81

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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.