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Finding the Fourth Proportional to 17,878.92, 26,801.97 and 9,103.58

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Solution

The fourth proportional to 17,878.92, 26,801.97 and 9,103.58 is: 13,647.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,878.92 : 26,801.97 = 9,103.58 : x
  2. Step 2: Convert to fraction form
    17,878.92/26,801.97 = 9,103.58/x
  3. Step 3: Cross multiply
    17,878.92x = 26,801.97 × 9,103.58
  4. Step 4: Simplify right side
    17,878.92x = 243,993,878.05
  5. Step 5: Solve for x
    x = 243,993,878.05/17,878.92
  6. Step 6: Final answer
    x = 13,647.01

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1.5x scale

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.