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Finding the Fourth Proportional to 17,932.40, 26,920.20 and 17,802.80

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Solution

The fourth proportional to 17,932.40, 26,920.20 and 17,802.80 is: 26,725.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,932.40 : 26,920.20 = 17,802.80 : x
  2. Step 2: Convert to fraction form
    17,932.40/26,920.20 = 17,802.80/x
  3. Step 3: Cross multiply
    17,932.40x = 26,920.20 × 17,802.80
  4. Step 4: Simplify right side
    17,932.40x = 479,254,936.56
  5. Step 5: Solve for x
    x = 479,254,936.56/17,932.40
  6. Step 6: Final answer
    x = 26,725.64

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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.