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Finding the Fourth Proportional to 18,809.01, 25,958.88 and 12,354.22

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Solution

The fourth proportional to 18,809.01, 25,958.88 and 12,354.22 is: 17,050.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,809.01 : 25,958.88 = 12,354.22 : x
  2. Step 2: Convert to fraction form
    18,809.01/25,958.88 = 12,354.22/x
  3. Step 3: Cross multiply
    18,809.01x = 25,958.88 × 12,354.22
  4. Step 4: Simplify right side
    18,809.01x = 320,701,746.92
  5. Step 5: Solve for x
    x = 320,701,746.92/18,809.01
  6. Step 6: Final answer
    x = 17,050.43

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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.