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Finding the Fourth Proportional to 17,926.31, 26,859.57 and 12,652.68

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Solution

The fourth proportional to 17,926.31, 26,859.57 and 12,652.68 is: 18,957.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,926.31 : 26,859.57 = 12,652.68 : x
  2. Step 2: Convert to fraction form
    17,926.31/26,859.57 = 12,652.68/x
  3. Step 3: Cross multiply
    17,926.31x = 26,859.57 × 12,652.68
  4. Step 4: Simplify right side
    17,926.31x = 339,845,544.15
  5. Step 5: Solve for x
    x = 339,845,544.15/17,926.31
  6. Step 6: Final answer
    x = 18,957.92

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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.