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Finding the Fourth Proportional to 17,103.60, 25,659.90 and 5,416.77

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Solution

The fourth proportional to 17,103.60, 25,659.90 and 5,416.77 is: 8,126.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,103.60 : 25,659.90 = 5,416.77 : x
  2. Step 2: Convert to fraction form
    17,103.60/25,659.90 = 5,416.77/x
  3. Step 3: Cross multiply
    17,103.60x = 25,659.90 × 5,416.77
  4. Step 4: Simplify right side
    17,103.60x = 138,993,776.52
  5. Step 5: Solve for x
    x = 138,993,776.52/17,103.60
  6. Step 6: Final answer
    x = 8,126.58

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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.