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Finding the Fourth Proportional to 17,979.51, 26,773.41 and 17,782.99

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Solution

The fourth proportional to 17,979.51, 26,773.41 and 17,782.99 is: 26,480.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,979.51 : 26,773.41 = 17,782.99 : x
  2. Step 2: Convert to fraction form
    17,979.51/26,773.41 = 17,782.99/x
  3. Step 3: Cross multiply
    17,979.51x = 26,773.41 × 17,782.99
  4. Step 4: Simplify right side
    17,979.51x = 476,111,282.30
  5. Step 5: Solve for x
    x = 476,111,282.30/17,979.51
  6. Step 6: Final answer
    x = 26,480.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.