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Finding the Fourth Proportional to 13,983.64, 19,297.02 and 7,695.88

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Solution

The fourth proportional to 13,983.64, 19,297.02 and 7,695.88 is: 10,620.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,983.64 : 19,297.02 = 7,695.88 : x
  2. Step 2: Convert to fraction form
    13,983.64/19,297.02 = 7,695.88/x
  3. Step 3: Cross multiply
    13,983.64x = 19,297.02 × 7,695.88
  4. Step 4: Simplify right side
    13,983.64x = 148,507,550.28
  5. Step 5: Solve for x
    x = 148,507,550.28/13,983.64
  6. Step 6: Final answer
    x = 10,620.09

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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.