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Finding the Fourth Proportional to 18,654.01, 25,724.78 and 14,398.27

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Solution

The fourth proportional to 18,654.01, 25,724.78 and 14,398.27 is: 19,855.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,654.01 : 25,724.78 = 14,398.27 : x
  2. Step 2: Convert to fraction form
    18,654.01/25,724.78 = 14,398.27/x
  3. Step 3: Cross multiply
    18,654.01x = 25,724.78 × 14,398.27
  4. Step 4: Simplify right side
    18,654.01x = 370,392,328.13
  5. Step 5: Solve for x
    x = 370,392,328.13/18,654.01
  6. Step 6: Final answer
    x = 19,855.91

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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.