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Finding the Fourth Proportional to 17,816.21, 26,733.53 and 12,926.21

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Solution

The fourth proportional to 17,816.21, 26,733.53 and 12,926.21 is: 19,396.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,816.21 : 26,733.53 = 12,926.21 : x
  2. Step 2: Convert to fraction form
    17,816.21/26,733.53 = 12,926.21/x
  3. Step 3: Cross multiply
    17,816.21x = 26,733.53 × 12,926.21
  4. Step 4: Simplify right side
    17,816.21x = 345,563,024.52
  5. Step 5: Solve for x
    x = 345,563,024.52/17,816.21
  6. Step 6: Final answer
    x = 19,396.00

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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.