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Finding the Fourth Proportional to 68,594.55, 102,889.36 and 17,993.18

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Solution

The fourth proportional to 68,594.55, 102,889.36 and 17,993.18 is: 26,989.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,594.55 : 102,889.36 = 17,993.18 : x
  2. Step 2: Convert to fraction form
    68,594.55/102,889.36 = 17,993.18/x
  3. Step 3: Cross multiply
    68,594.55x = 102,889.36 × 17,993.18
  4. Step 4: Simplify right side
    68,594.55x = 1,851,306,215.14
  5. Step 5: Solve for x
    x = 1,851,306,215.14/68,594.55
  6. Step 6: Final answer
    x = 26,989.12

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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.