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Finding the Fourth Proportional to 17,700.58, 26,550.87 and 7,837.21

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Solution

The fourth proportional to 17,700.58, 26,550.87 and 7,837.21 is: 11,755.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,700.58 : 26,550.87 = 7,837.21 : x
  2. Step 2: Convert to fraction form
    17,700.58/26,550.87 = 7,837.21/x
  3. Step 3: Cross multiply
    17,700.58x = 26,550.87 × 7,837.21
  4. Step 4: Simplify right side
    17,700.58x = 208,084,743.87
  5. Step 5: Solve for x
    x = 208,084,743.87/17,700.58
  6. Step 6: Final answer
    x = 11,755.82

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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.