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Finding the Fourth Proportional to 17,102.90, 25,611.15 and 13,646.90

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Solution

The fourth proportional to 17,102.90, 25,611.15 and 13,646.90 is: 20,435.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,102.90 : 25,611.15 = 13,646.90 : x
  2. Step 2: Convert to fraction form
    17,102.90/25,611.15 = 13,646.90/x
  3. Step 3: Cross multiply
    17,102.90x = 25,611.15 × 13,646.90
  4. Step 4: Simplify right side
    17,102.90x = 349,512,802.94
  5. Step 5: Solve for x
    x = 349,512,802.94/17,102.90
  6. Step 6: Final answer
    x = 20,435.88

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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.