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Finding the Fourth Proportional to 18,860.82, 26,023.17 and 12,568.98

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Solution

The fourth proportional to 18,860.82, 26,023.17 and 12,568.98 is: 17,342.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,860.82 : 26,023.17 = 12,568.98 : x
  2. Step 2: Convert to fraction form
    18,860.82/26,023.17 = 12,568.98/x
  3. Step 3: Cross multiply
    18,860.82x = 26,023.17 × 12,568.98
  4. Step 4: Simplify right side
    18,860.82x = 327,084,703.27
  5. Step 5: Solve for x
    x = 327,084,703.27/18,860.82
  6. Step 6: Final answer
    x = 17,342.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.