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Finding the Fourth Proportional to 17,603.92, 26,404.16 and 7,214.88

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Solution

The fourth proportional to 17,603.92, 26,404.16 and 7,214.88 is: 10,821.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,603.92 : 26,404.16 = 7,214.88 : x
  2. Step 2: Convert to fraction form
    17,603.92/26,404.16 = 7,214.88/x
  3. Step 3: Cross multiply
    17,603.92x = 26,404.16 × 7,214.88
  4. Step 4: Simplify right side
    17,603.92x = 190,502,845.90
  5. Step 5: Solve for x
    x = 190,502,845.90/17,603.92
  6. Step 6: Final answer
    x = 10,821.62

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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.