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Finding the Fourth Proportional to 18,404.73, 25,398.95 and 10,446.21

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Solution

The fourth proportional to 18,404.73, 25,398.95 and 10,446.21 is: 14,416.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,404.73 : 25,398.95 = 10,446.21 : x
  2. Step 2: Convert to fraction form
    18,404.73/25,398.95 = 10,446.21/x
  3. Step 3: Cross multiply
    18,404.73x = 25,398.95 × 10,446.21
  4. Step 4: Simplify right side
    18,404.73x = 265,322,713.25
  5. Step 5: Solve for x
    x = 265,322,713.25/18,404.73
  6. Step 6: Final answer
    x = 14,416.01

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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.