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Finding the Fourth Proportional to 18,164.51, 27,254.96 and 9,275.25

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Solution

The fourth proportional to 18,164.51, 27,254.96 and 9,275.25 is: 13,917.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,164.51 : 27,254.96 = 9,275.25 : x
  2. Step 2: Convert to fraction form
    18,164.51/27,254.96 = 9,275.25/x
  3. Step 3: Cross multiply
    18,164.51x = 27,254.96 × 9,275.25
  4. Step 4: Simplify right side
    18,164.51x = 252,796,521.36
  5. Step 5: Solve for x
    x = 252,796,521.36/18,164.51
  6. Step 6: Final answer
    x = 13,917.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.