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Finding the Fourth Proportional to 17,339.10, 25,940.21 and 13,360.21

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Solution

The fourth proportional to 17,339.10, 25,940.21 and 13,360.21 is: 19,987.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,339.10 : 25,940.21 = 13,360.21 : x
  2. Step 2: Convert to fraction form
    17,339.10/25,940.21 = 13,360.21/x
  3. Step 3: Cross multiply
    17,339.10x = 25,940.21 × 13,360.21
  4. Step 4: Simplify right side
    17,339.10x = 346,566,670.05
  5. Step 5: Solve for x
    x = 346,566,670.05/17,339.10
  6. Step 6: Final answer
    x = 19,987.59

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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.