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Finding the Fourth Proportional to 17,686.99, 26,530.52 and 4,539.39

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Solution

The fourth proportional to 17,686.99, 26,530.52 and 4,539.39 is: 6,809.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,686.99 : 26,530.52 = 4,539.39 : x
  2. Step 2: Convert to fraction form
    17,686.99/26,530.52 = 4,539.39/x
  3. Step 3: Cross multiply
    17,686.99x = 26,530.52 × 4,539.39
  4. Step 4: Simplify right side
    17,686.99x = 120,432,377.18
  5. Step 5: Solve for x
    x = 120,432,377.18/17,686.99
  6. Step 6: Final answer
    x = 6,809.09

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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.