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Finding the Fourth Proportional to 18,594.40, 25,659.12 and 17,108.32

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Solution

The fourth proportional to 18,594.40, 25,659.12 and 17,108.32 is: 23,608.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,594.40 : 25,659.12 = 17,108.32 : x
  2. Step 2: Convert to fraction form
    18,594.40/25,659.12 = 17,108.32/x
  3. Step 3: Cross multiply
    18,594.40x = 25,659.12 × 17,108.32
  4. Step 4: Simplify right side
    18,594.40x = 438,984,435.88
  5. Step 5: Solve for x
    x = 438,984,435.88/18,594.40
  6. Step 6: Final answer
    x = 23,608.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.