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Finding the Fourth Proportional to 17,608.12, 26,420.78 and 7,746.17

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Solution

The fourth proportional to 17,608.12, 26,420.78 and 7,746.17 is: 11,623.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,608.12 : 26,420.78 = 7,746.17 : x
  2. Step 2: Convert to fraction form
    17,608.12/26,420.78 = 7,746.17/x
  3. Step 3: Cross multiply
    17,608.12x = 26,420.78 × 7,746.17
  4. Step 4: Simplify right side
    17,608.12x = 204,659,740.67
  5. Step 5: Solve for x
    x = 204,659,740.67/17,608.12
  6. Step 6: Final answer
    x = 11,623.03

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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.