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Finding the Fourth Proportional to 19,242.96, 26,555.82 and 10,860

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Solution

The fourth proportional to 19,242.96, 26,555.82 and 10,860 is: 14,987.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,242.96 : 26,555.82 = 10,860 : x
  2. Step 2: Convert to fraction form
    19,242.96/26,555.82 = 10,860/x
  3. Step 3: Cross multiply
    19,242.96x = 26,555.82 × 10,860
  4. Step 4: Simplify right side
    19,242.96x = 288,396,205.20
  5. Step 5: Solve for x
    x = 288,396,205.20/19,242.96
  6. Step 6: Final answer
    x = 14,987.10

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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.