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Finding the Fourth Proportional to 17,898.60, 26,847.90 and 13,746.60

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Solution

The fourth proportional to 17,898.60, 26,847.90 and 13,746.60 is: 20,619.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,898.60 : 26,847.90 = 13,746.60 : x
  2. Step 2: Convert to fraction form
    17,898.60/26,847.90 = 13,746.60/x
  3. Step 3: Cross multiply
    17,898.60x = 26,847.90 × 13,746.60
  4. Step 4: Simplify right side
    17,898.60x = 369,067,342.14
  5. Step 5: Solve for x
    x = 369,067,342.14/17,898.60
  6. Step 6: Final answer
    x = 20,619.90

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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.