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Finding the Fourth Proportional to 17,104.90, 25,614.15 and 13,648.90

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Solution

The fourth proportional to 17,104.90, 25,614.15 and 13,648.90 is: 20,438.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,104.90 : 25,614.15 = 13,648.90 : x
  2. Step 2: Convert to fraction form
    17,104.90/25,614.15 = 13,648.90/x
  3. Step 3: Cross multiply
    17,104.90x = 25,614.15 × 13,648.90
  4. Step 4: Simplify right side
    17,104.90x = 349,604,971.94
  5. Step 5: Solve for x
    x = 349,604,971.94/17,104.90
  6. Step 6: Final answer
    x = 20,438.88

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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.