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Finding the Fourth Proportional to 17,265.90, 25,893.18 and 5,419.65

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Solution

The fourth proportional to 17,265.90, 25,893.18 and 5,419.65 is: 8,127.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,265.90 : 25,893.18 = 5,419.65 : x
  2. Step 2: Convert to fraction form
    17,265.90/25,893.18 = 5,419.65/x
  3. Step 3: Cross multiply
    17,265.90x = 25,893.18 × 5,419.65
  4. Step 4: Simplify right side
    17,265.90x = 140,331,972.99
  5. Step 5: Solve for x
    x = 140,331,972.99/17,265.90
  6. Step 6: Final answer
    x = 8,127.70

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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.