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Finding the Fourth Proportional to 17,597.80, 26,396.70 and 5,117.80

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Solution

The fourth proportional to 17,597.80, 26,396.70 and 5,117.80 is: 7,676.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,597.80 : 26,396.70 = 5,117.80 : x
  2. Step 2: Convert to fraction form
    17,597.80/26,396.70 = 5,117.80/x
  3. Step 3: Cross multiply
    17,597.80x = 26,396.70 × 5,117.80
  4. Step 4: Simplify right side
    17,597.80x = 135,093,031.26
  5. Step 5: Solve for x
    x = 135,093,031.26/17,597.80
  6. Step 6: Final answer
    x = 7,676.70

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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.