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Finding the Fourth Proportional to 17,108.60, 25,662.90 and 16,962.80

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Solution

The fourth proportional to 17,108.60, 25,662.90 and 16,962.80 is: 25,444.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,108.60 : 25,662.90 = 16,962.80 : x
  2. Step 2: Convert to fraction form
    17,108.60/25,662.90 = 16,962.80/x
  3. Step 3: Cross multiply
    17,108.60x = 25,662.90 × 16,962.80
  4. Step 4: Simplify right side
    17,108.60x = 435,314,640.12
  5. Step 5: Solve for x
    x = 435,314,640.12/17,108.60
  6. Step 6: Final answer
    x = 25,444.20

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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.