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Finding the Fourth Proportional to 18,752.16, 25,912.20 and 17,841.20

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Solution

The fourth proportional to 18,752.16, 25,912.20 and 17,841.20 is: 24,653.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,752.16 : 25,912.20 = 17,841.20 : x
  2. Step 2: Convert to fraction form
    18,752.16/25,912.20 = 17,841.20/x
  3. Step 3: Cross multiply
    18,752.16x = 25,912.20 × 17,841.20
  4. Step 4: Simplify right side
    18,752.16x = 462,304,742.64
  5. Step 5: Solve for x
    x = 462,304,742.64/18,752.16
  6. Step 6: Final answer
    x = 24,653.41

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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.