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Finding the Fourth Proportional to 18,435.84, 25,237.92 and 18,304.08

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Solution

The fourth proportional to 18,435.84, 25,237.92 and 18,304.08 is: 25,057.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,435.84 : 25,237.92 = 18,304.08 : x
  2. Step 2: Convert to fraction form
    18,435.84/25,237.92 = 18,304.08/x
  3. Step 3: Cross multiply
    18,435.84x = 25,237.92 × 18,304.08
  4. Step 4: Simplify right side
    18,435.84x = 461,956,906.71
  5. Step 5: Solve for x
    x = 461,956,906.71/18,435.84
  6. Step 6: Final answer
    x = 25,057.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.