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Finding the Fourth Proportional to 17,645.35, 26,478.99 and 10,994.90

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Solution

The fourth proportional to 17,645.35, 26,478.99 and 10,994.90 is: 16,499.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,645.35 : 26,478.99 = 10,994.90 : x
  2. Step 2: Convert to fraction form
    17,645.35/26,478.99 = 10,994.90/x
  3. Step 3: Cross multiply
    17,645.35x = 26,478.99 × 10,994.90
  4. Step 4: Simplify right side
    17,645.35x = 291,133,847.15
  5. Step 5: Solve for x
    x = 291,133,847.15/17,645.35
  6. Step 6: Final answer
    x = 16,499.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.