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Finding the Fourth Proportional to 17,989.60, 26,984.40 and 6,301.30

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Solution

The fourth proportional to 17,989.60, 26,984.40 and 6,301.30 is: 9,451.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,989.60 : 26,984.40 = 6,301.30 : x
  2. Step 2: Convert to fraction form
    17,989.60/26,984.40 = 6,301.30/x
  3. Step 3: Cross multiply
    17,989.60x = 26,984.40 × 6,301.30
  4. Step 4: Simplify right side
    17,989.60x = 170,036,799.72
  5. Step 5: Solve for x
    x = 170,036,799.72/17,989.60
  6. Step 6: Final answer
    x = 9,451.95

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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.