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Finding the Fourth Proportional to 17,755.67, 26,608.13 and 13,038.68

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Solution

The fourth proportional to 17,755.67, 26,608.13 and 13,038.68 is: 19,539.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,755.67 : 26,608.13 = 13,038.68 : x
  2. Step 2: Convert to fraction form
    17,755.67/26,608.13 = 13,038.68/x
  3. Step 3: Cross multiply
    17,755.67x = 26,608.13 × 13,038.68
  4. Step 4: Simplify right side
    17,755.67x = 346,934,760.75
  5. Step 5: Solve for x
    x = 346,934,760.75/17,755.67
  6. Step 6: Final answer
    x = 19,539.38

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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.