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Finding the Fourth Proportional to 18,411.01, 25,407.20 and 10,027.51

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Solution

The fourth proportional to 18,411.01, 25,407.20 and 10,027.51 is: 13,837.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,411.01 : 25,407.20 = 10,027.51 : x
  2. Step 2: Convert to fraction form
    18,411.01/25,407.20 = 10,027.51/x
  3. Step 3: Cross multiply
    18,411.01x = 25,407.20 × 10,027.51
  4. Step 4: Simplify right side
    18,411.01x = 254,770,952.07
  5. Step 5: Solve for x
    x = 254,770,952.07/18,411.01
  6. Step 6: Final answer
    x = 13,837.97

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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.