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Finding the Fourth Proportional to 18,614.51, 25,738.53 and 18,314.05

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Solution

The fourth proportional to 18,614.51, 25,738.53 and 18,314.05 is: 25,323.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,614.51 : 25,738.53 = 18,314.05 : x
  2. Step 2: Convert to fraction form
    18,614.51/25,738.53 = 18,314.05/x
  3. Step 3: Cross multiply
    18,614.51x = 25,738.53 × 18,314.05
  4. Step 4: Simplify right side
    18,614.51x = 471,376,725.35
  5. Step 5: Solve for x
    x = 471,376,725.35/18,614.51
  6. Step 6: Final answer
    x = 25,323.08

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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.