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Finding the Fourth Proportional to 17,409.99, 26,163.18 and 16,987.98

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Solution

The fourth proportional to 17,409.99, 26,163.18 and 16,987.98 is: 25,529.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,409.99 : 26,163.18 = 16,987.98 : x
  2. Step 2: Convert to fraction form
    17,409.99/26,163.18 = 16,987.98/x
  3. Step 3: Cross multiply
    17,409.99x = 26,163.18 × 16,987.98
  4. Step 4: Simplify right side
    17,409.99x = 444,459,578.58
  5. Step 5: Solve for x
    x = 444,459,578.58/17,409.99
  6. Step 6: Final answer
    x = 25,529.00

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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.