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Finding the Fourth Proportional to 14,489.29, 19,995.29 and 8,202.88

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Solution

The fourth proportional to 14,489.29, 19,995.29 and 8,202.88 is: 11,320.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,489.29 : 19,995.29 = 8,202.88 : x
  2. Step 2: Convert to fraction form
    14,489.29/19,995.29 = 8,202.88/x
  3. Step 3: Cross multiply
    14,489.29x = 19,995.29 × 8,202.88
  4. Step 4: Simplify right side
    14,489.29x = 164,018,964.44
  5. Step 5: Solve for x
    x = 164,018,964.44/14,489.29
  6. Step 6: Final answer
    x = 11,320.01

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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.